Search for Large Extra Dimensions in the Production of Jets and Missing Transverse Energy in $p\bar{p}$ Collisions at $\sqrt{s}$ = 1.96 TeV
A.~Abulencia
We present the results of a search for new physics in the jets plus missing transverse energy data sample collected from 368~pb$^{-1}$ of \ppb~ collisions at $\sqrt{\mbox{s}} =$1.96~TeV recorded by the Collider Detector at Fermilab. We compare the number of events observed in the data with a data-based estimate of the \sm\ backgrounds contributing to this signature. We observe no significant excess of events, and we interpret this null result in terms of lower limits on the fundamental Planck scale for a large extra dimensions scenario.
January_2006_Authors.tex
\affiliation{Institute of Physics, Academia Sinica, Taipei, Taiwan 11529, Republic of China} 
\affiliation{Argonne National Laboratory, Argonne, Illinois 60439} 
\affiliation{Institut de Fisica d'Altes Energies, Universitat Autonoma de Barcelona, E-08193, Bellaterra (Barcelona), Spain} 
\affiliation{Baylor University, Waco, Texas  76798} 
\affiliation{Istituto Nazionale di Fisica Nucleare, University of Bologna, I-40127 Bologna, Italy} 
\affiliation{Brandeis University, Waltham, Massachusetts 02254} 
\affiliation{University of California, Davis, Davis, California  95616} 
\affiliation{University of California, Los Angeles, Los Angeles, California  90024} 
\affiliation{University of California, San Diego, La Jolla, California  92093} 
\affiliation{University of California, Santa Barbara, Santa Barbara, California 93106} 
\affiliation{Instituto de Fisica de Cantabria, CSIC-University of Cantabria, 39005 Santander, Spain} 
\affiliation{Carnegie Mellon University, Pittsburgh, PA  15213} 
\affiliation{Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637} 
\affiliation{Joint Institute for Nuclear Research, RU-141980 Dubna, Russia} 
\affiliation{Duke University, Durham, North Carolina  27708} 
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510} 
\affiliation{University of Florida, Gainesville, Florida  32611} 
\affiliation{Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati, Italy} 
\affiliation{University of Geneva, CH-1211 Geneva 4, Switzerland} 
\affiliation{Glasgow University, Glasgow G12 8QQ, United Kingdom} 
\affiliation{Harvard University, Cambridge, Massachusetts 02138} 
\affiliation{Division of High Energy Physics, Department of Physics, University of Helsinki and Helsinki Institute of Physics, FIN-00014, Helsinki, Finland} 
\affiliation{University of Illinois, Urbana, Illinois 61801} 
\affiliation{The Johns Hopkins University, Baltimore, Maryland 21218} 
\affiliation{Institut f\"{u}r Experimentelle Kernphysik, Universit\"{a}t Karlsruhe, 76128 Karlsruhe, Germany} 
\affiliation{High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305, Japan} 
\affiliation{Center for High Energy Physics: Kyungpook National University, Taegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; and SungKyunKwan University, Suwon 440-746, Korea} 
\affiliation{Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720} 
\affiliation{University of Liverpool, Liverpool L69 7ZE, United Kingdom} 
\affiliation{University College London, London WC1E 6BT, United Kingdom} 
\affiliation{Centro de Investigaciones Energeticas Medioambientales y Tecnologicas, E-28040 Madrid, Spain} 
\affiliation{Massachusetts Institute of Technology, Cambridge, Massachusetts  02139} 
\affiliation{Institute of Particle Physics: McGill University, Montr\'{e}al, Canada H3A~2T8; and University of Toronto, Toronto, Canada M5S~1A7} 
\affiliation{University of Michigan, Ann Arbor, Michigan 48109} 
\affiliation{Michigan State University, East Lansing, Michigan  48824} 
\affiliation{Institution for Theoretical and Experimental Physics, ITEP, Moscow 117259, Russia} 
\affiliation{University of New Mexico, Albuquerque, New Mexico 87131} 
\affiliation{Northwestern University, Evanston, Illinois  60208} 
\affiliation{The Ohio State University, Columbus, Ohio  43210} 
\affiliation{Okayama University, Okayama 700-8530, Japan} 
\affiliation{Osaka City University, Osaka 588, Japan} 
\affiliation{University of Oxford, Oxford OX1 3RH, United Kingdom} 
\affiliation{University of Padova, Istituto Nazionale di Fisica Nucleare, Sezione di Padova-Trento, I-35131 Padova, Italy} 
\affiliation{LPNHE, Universite Pierre et Marie Curie/IN2P3-CNRS, UMR7585, Paris, F-75252 France} 
\affiliation{University of Pennsylvania, Philadelphia, Pennsylvania 19104} 
\affiliation{Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy} 
\affiliation{University of Pittsburgh, Pittsburgh, Pennsylvania 15260} 
\affiliation{Purdue University, West Lafayette, Indiana 47907} 
\affiliation{University of Rochester, Rochester, New York 14627} 
\affiliation{The Rockefeller University, New York, New York 10021} 
\affiliation{Istituto Nazionale di Fisica Nucleare, Sezione di Roma 1, University of Rome ``La Sapienza," I-00185 Roma, Italy} 
\affiliation{Rutgers University, Piscataway, New Jersey 08855} 
\affiliation{Texas A\&M University, College Station, Texas 77843} 
\affiliation{Istituto Nazionale di Fisica Nucleare, University of Trieste/\ Udine, Italy} 
\affiliation{University of Tsukuba, Tsukuba, Ibaraki 305, Japan} 
\affiliation{Tufts University, Medford, Massachusetts 02155} 
\affiliation{Waseda University, Tokyo 169, Japan} 
\affiliation{Wayne State University, Detroit, Michigan  48201} 
\affiliation{University of Wisconsin, Madison, Wisconsin 53706} 
\affiliation{Yale University, New Haven, Connecticut 06520} 
\author{A.~Abulencia}
\affiliation{University of Illinois, Urbana, Illinois 61801}
\author{D.~Acosta}
\affiliation{University of Florida, Gainesville, Florida  32611}
\author{J.~Adelman}
\affiliation{Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637}
\author{T.~Affolder}
\affiliation{University of California, Santa Barbara, Santa Barbara, California 93106}
\author{T.~Akimoto}
\affiliation{University of Tsukuba, Tsukuba, Ibaraki 305, Japan}
\author{M.G.~Albrow}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{D.~Ambrose}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{S.~Amerio}
\affiliation{University of Padova, Istituto Nazionale di Fisica Nucleare, Sezione di Padova-Trento, I-35131 Padova, Italy}
\author{D.~Amidei}
\affiliation{University of Michigan, Ann Arbor, Michigan 48109}
\author{A.~Anastassov}
\affiliation{Rutgers University, Piscataway, New Jersey 08855}
\author{K.~Anikeev}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{A.~Annovi}
\affiliation{Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati, Italy}
\author{J.~Antos}
\affiliation{Institute of Physics, Academia Sinica, Taipei, Taiwan 11529, Republic of China}
\author{M.~Aoki}
\affiliation{University of Tsukuba, Tsukuba, Ibaraki 305, Japan}
\author{G.~Apollinari}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{J.-F.~Arguin}
\affiliation{Institute of Particle Physics: McGill University, Montr\'{e}al, Canada H3A~2T8; and University of Toronto, Toronto, Canada M5S~1A7}
\author{T.~Arisawa}
\affiliation{Waseda University, Tokyo 169, Japan}
\author{A.~Artikov}
\affiliation{Joint Institute for Nuclear Research, RU-141980 Dubna, Russia}
\author{W.~Ashmanskas}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{A.~Attal}
\affiliation{University of California, Los Angeles, Los Angeles, California  90024}
\author{F.~Azfar}
\affiliation{University of Oxford, Oxford OX1 3RH, United Kingdom}
\author{P.~Azzi-Bacchetta}
\affiliation{University of Padova, Istituto Nazionale di Fisica Nucleare, Sezione di Padova-Trento, I-35131 Padova, Italy}
\author{P.~Azzurri}
\affiliation{Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy}
\author{N.~Bacchetta}
\affiliation{University of Padova, Istituto Nazionale di Fisica Nucleare, Sezione di Padova-Trento, I-35131 Padova, Italy}
\author{H.~Bachacou}
\affiliation{Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720}
\author{W.~Badgett}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{A.~Barbaro-Galtieri}
\affiliation{Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720}
\author{V.E.~Barnes}
\affiliation{Purdue University, West Lafayette, Indiana 47907}
\author{B.A.~Barnett}
\affiliation{The Johns Hopkins University, Baltimore, Maryland 21218}
\author{S.~Baroiant}
\affiliation{University of California, Davis, Davis, California  95616}
\author{V.~Bartsch}
\affiliation{University College London, London WC1E 6BT, United Kingdom}
\author{G.~Bauer}
\affiliation{Massachusetts Institute of Technology, Cambridge, Massachusetts  02139}
\author{P.-H.~Beauchemin}
\affiliation{Institute of Particle Physics: McGill University, Montr\'{e}al, Canada H3A~2T8; and University of Toronto, Toronto, Canada M5S~1A7}
\author{F.~Bedeschi}
\affiliation{Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy}
\author{S.~Behari}
\affiliation{The Johns Hopkins University, Baltimore, Maryland 21218}
\author{S.~Belforte}
\affiliation{Istituto Nazionale di Fisica Nucleare, University of Trieste/\ Udine, Italy}
\author{G.~Bellettini}
\affiliation{Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy}
\author{J.~Bellinger}
\affiliation{University of Wisconsin, Madison, Wisconsin 53706}
\author{A.~Belloni}
\affiliation{Massachusetts Institute of Technology, Cambridge, Massachusetts  02139}
\author{E.~Ben~Haim}
\affiliation{LPNHE, Universite Pierre et Marie Curie/IN2P3-CNRS, UMR7585, Paris, F-75252 France}
\author{D.~Benjamin}
\affiliation{Duke University, Durham, North Carolina  27708}
\author{A.~Beretvas}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{J.~Beringer}
\affiliation{Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720}
\author{T.~Berry}
\affiliation{University of Liverpool, Liverpool L69 7ZE, United Kingdom}
\author{A.~Bhatti}
\affiliation{The Rockefeller University, New York, New York 10021}
\author{M.~Binkley}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{D.~Bisello}
\affiliation{University of Padova, Istituto Nazionale di Fisica Nucleare, Sezione di Padova-Trento, I-35131 Padova, Italy}
\author{R.~E.~Blair}
\affiliation{Argonne National Laboratory, Argonne, Illinois 60439}
\author{C.~Blocker}
\affiliation{Brandeis University, Waltham, Massachusetts 02254}
\author{B.~Blumenfeld}
\affiliation{The Johns Hopkins University, Baltimore, Maryland 21218}
\author{A.~Bocci}
\affiliation{Duke University, Durham, North Carolina  27708}
\author{A.~Bodek}
\affiliation{University of Rochester, Rochester, New York 14627}
\author{V.~Boisvert}
\affiliation{University of Rochester, Rochester, New York 14627}
\author{G.~Bolla}
\affiliation{Purdue University, West Lafayette, Indiana 47907}
\author{A.~Bolshov}
\affiliation{Massachusetts Institute of Technology, Cambridge, Massachusetts  02139}
\author{D.~Bortoletto}
\affiliation{Purdue University, West Lafayette, Indiana 47907}
\author{J.~Boudreau}
\affiliation{University of Pittsburgh, Pittsburgh, Pennsylvania 15260}
\author{A.~Boveia}
\affiliation{University of California, Santa Barbara, Santa Barbara, California 93106}
\author{B.~Brau}
\affiliation{University of California, Santa Barbara, Santa Barbara, California 93106}
\author{C.~Bromberg}
\affiliation{Michigan State University, East Lansing, Michigan  48824}
\author{E.~Brubaker}
\affiliation{Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637}
\author{J.~Budagov}
\affiliation{Joint Institute for Nuclear Research, RU-141980 Dubna, Russia}
\author{H.S.~Budd}
\affiliation{University of Rochester, Rochester, New York 14627}
\author{S.~Budd}
\affiliation{University of Illinois, Urbana, Illinois 61801}
\author{K.~Burkett}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{G.~Busetto}
\affiliation{University of Padova, Istituto Nazionale di Fisica Nucleare, Sezione di Padova-Trento, I-35131 Padova, Italy}
\author{P.~Bussey}
\affiliation{Glasgow University, Glasgow G12 8QQ, United Kingdom}
\author{K.~L.~Byrum}
\affiliation{Argonne National Laboratory, Argonne, Illinois 60439}
\author{S.~Cabrera}
\affiliation{Duke University, Durham, North Carolina  27708}
\author{M.~Campanelli}
\affiliation{University of Geneva, CH-1211 Geneva 4, Switzerland}
\author{M.~Campbell}
\affiliation{University of Michigan, Ann Arbor, Michigan 48109}
\author{F.~Canelli}
\affiliation{University of California, Los Angeles, Los Angeles, California  90024}
\author{A.~Canepa}
\affiliation{Purdue University, West Lafayette, Indiana 47907}
\author{D.~Carlsmith}
\affiliation{University of Wisconsin, Madison, Wisconsin 53706}
\author{R.~Carosi}
\affiliation{Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy}
\author{S.~Carron}
\affiliation{Duke University, Durham, North Carolina  27708}
\author{M.~Casarsa}
\affiliation{Istituto Nazionale di Fisica Nucleare, University of Trieste/\ Udine, Italy}
\author{A.~Castro}
\affiliation{Istituto Nazionale di Fisica Nucleare, University of Bologna, I-40127 Bologna, Italy}
\author{P.~Catastini}
\affiliation{Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy}
\author{D.~Cauz}
\affiliation{Istituto Nazionale di Fisica Nucleare, University of Trieste/\ Udine, Italy}
\author{M.~Cavalli-Sforza}
\affiliation{Institut de Fisica d'Altes Energies, Universitat Autonoma de Barcelona, E-08193, Bellaterra (Barcelona), Spain}
\author{A.~Cerri}
\affiliation{Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720}
\author{L.~Cerrito}
\affiliation{University of Oxford, Oxford OX1 3RH, United Kingdom}
\author{S.H.~Chang}
\affiliation{Center for High Energy Physics: Kyungpook National University, Taegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; and SungKyunKwan University, Suwon 440-746, Korea}
\author{J.~Chapman}
\affiliation{University of Michigan, Ann Arbor, Michigan 48109}
\author{Y.C.~Chen}
\affiliation{Institute of Physics, Academia Sinica, Taipei, Taiwan 11529, Republic of China}
\author{M.~Chertok}
\affiliation{University of California, Davis, Davis, California  95616}
\author{G.~Chiarelli}
\affiliation{Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy}
\author{G.~Chlachidze}
\affiliation{Joint Institute for Nuclear Research, RU-141980 Dubna, Russia}
\author{F.~Chlebana}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{I.~Cho}
\affiliation{Center for High Energy Physics: Kyungpook National University, Taegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; and SungKyunKwan University, Suwon 440-746, Korea}
\author{K.~Cho}
\affiliation{Center for High Energy Physics: Kyungpook National University, Taegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; and SungKyunKwan University, Suwon 440-746, Korea}
\author{D.~Chokheli}
\affiliation{Joint Institute for Nuclear Research, RU-141980 Dubna, Russia}
\author{J.P.~Chou}
\affiliation{Harvard University, Cambridge, Massachusetts 02138}
\author{P.H.~Chu}
\affiliation{University of Illinois, Urbana, Illinois 61801}
\author{S.H.~Chuang}
\affiliation{University of Wisconsin, Madison, Wisconsin 53706}
\author{K.~Chung}
\affiliation{Carnegie Mellon University, Pittsburgh, PA  15213}
\author{W.H.~Chung}
\affiliation{University of Wisconsin, Madison, Wisconsin 53706}
\author{Y.S.~Chung}
\affiliation{University of Rochester, Rochester, New York 14627}
\author{M.~Ciljak}
\affiliation{Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy}
\author{C.I.~Ciobanu}
\affiliation{University of Illinois, Urbana, Illinois 61801}
\author{M.A.~Ciocci}
\affiliation{Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy}
\author{A.~Clark}
\affiliation{University of Geneva, CH-1211 Geneva 4, Switzerland}
\author{D.~Clark}
\affiliation{Brandeis University, Waltham, Massachusetts 02254}
\author{M.~Coca}
\affiliation{Duke University, Durham, North Carolina  27708}
\author{G.~Compostella}
\affiliation{University of Padova, Istituto Nazionale di Fisica Nucleare, Sezione di Padova-Trento, I-35131 Padova, Italy}
\author{M.E.~Convery}
\affiliation{The Rockefeller University, New York, New York 10021}
\author{J.~Conway}
\affiliation{University of California, Davis, Davis, California  95616}
\author{B.~Cooper}
\affiliation{University College London, London WC1E 6BT, United Kingdom}
\author{K.~Copic}
\affiliation{University of Michigan, Ann Arbor, Michigan 48109}
\author{M.~Cordelli}
\affiliation{Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati, Italy}
\author{G.~Cortiana}
\affiliation{University of Padova, Istituto Nazionale di Fisica Nucleare, Sezione di Padova-Trento, I-35131 Padova, Italy}
\author{F.~Cresciolo}
\affiliation{Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy}
\author{A.~Cruz}
\affiliation{University of Florida, Gainesville, Florida  32611}
\author{C.~Cuenca~Almenar}
\affiliation{University of California, Davis, Davis, California  95616}
\author{J.~Cuevas}
\affiliation{Instituto de Fisica de Cantabria, CSIC-University of Cantabria, 39005 Santander, Spain}
\author{R.~Culbertson}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{D.~Cyr}
\affiliation{University of Wisconsin, Madison, Wisconsin 53706}
\author{S.~DaRonco}
\affiliation{University of Padova, Istituto Nazionale di Fisica Nucleare, Sezione di Padova-Trento, I-35131 Padova, Italy}
\author{S.~D'Auria}
\affiliation{Glasgow University, Glasgow G12 8QQ, United Kingdom}
\author{M.~D'Onofrio}
\affiliation{Institut de Fisica d'Altes Energies, Universitat Autonoma de Barcelona, E-08193, Bellaterra (Barcelona), Spain}
\author{D.~Dagenhart}
\affiliation{Brandeis University, Waltham, Massachusetts 02254}
\author{P.~de~Barbaro}
\affiliation{University of Rochester, Rochester, New York 14627}
\author{S.~De~Cecco}
\affiliation{Istituto Nazionale di Fisica Nucleare, Sezione di Roma 1, University of Rome ``La Sapienza," I-00185 Roma, Italy}
\author{A.~Deisher}
\affiliation{Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720}
\author{G.~De~Lentdecker}
\affiliation{University of Rochester, Rochester, New York 14627}
\author{M.~Dell'Orso}
\affiliation{Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy}
\author{F.~Delli~Paoli}
\affiliation{University of Padova, Istituto Nazionale di Fisica Nucleare, Sezione di Padova-Trento, I-35131 Padova, Italy}
\author{S.~Demers}
\affiliation{University of Rochester, Rochester, New York 14627}
\author{L.~Demortier}
\affiliation{The Rockefeller University, New York, New York 10021}
\author{J.~Deng}
\affiliation{Duke University, Durham, North Carolina  27708}
\author{M.~Deninno}
\affiliation{Istituto Nazionale di Fisica Nucleare, University of Bologna, I-40127 Bologna, Italy}
\author{D.~De~Pedis}
\affiliation{Istituto Nazionale di Fisica Nucleare, Sezione di Roma 1, University of Rome ``La Sapienza," I-00185 Roma, Italy}
\author{P.F.~Derwent}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{C.~Dionisi}
\affiliation{Istituto Nazionale di Fisica Nucleare, Sezione di Roma 1, University of Rome ``La Sapienza," I-00185 Roma, Italy}
\author{J.R.~Dittmann}
\affiliation{Baylor University, Waco, Texas  76798}
\author{P.~DiTuro}
\affiliation{Rutgers University, Piscataway, New Jersey 08855}
\author{C.~D\"{o}rr}
\affiliation{Institut f\"{u}r Experimentelle Kernphysik, Universit\"{a}t Karlsruhe, 76128 Karlsruhe, Germany}
\author{S.~Donati}
\affiliation{Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy}
\author{M.~Donega}
\affiliation{University of Geneva, CH-1211 Geneva 4, Switzerland}
\author{P.~Dong}
\affiliation{University of California, Los Angeles, Los Angeles, California  90024}
\author{J.~Donini}
\affiliation{University of Padova, Istituto Nazionale di Fisica Nucleare, Sezione di Padova-Trento, I-35131 Padova, Italy}
\author{T.~Dorigo}
\affiliation{University of Padova, Istituto Nazionale di Fisica Nucleare, Sezione di Padova-Trento, I-35131 Padova, Italy}
\author{S.~Dube}
\affiliation{Rutgers University, Piscataway, New Jersey 08855}
\author{K.~Ebina}
\affiliation{Waseda University, Tokyo 169, Japan}
\author{J.~Efron}
\affiliation{The Ohio State University, Columbus, Ohio  43210}
\author{J.~Ehlers}
\affiliation{University of Geneva, CH-1211 Geneva 4, Switzerland}
\author{R.~Erbacher}
\affiliation{University of California, Davis, Davis, California  95616}
\author{D.~Errede}
\affiliation{University of Illinois, Urbana, Illinois 61801}
\author{S.~Errede}
\affiliation{University of Illinois, Urbana, Illinois 61801}
\author{R.~Eusebi}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{H.C.~Fang}
\affiliation{Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720}
\author{S.~Farrington}
\affiliation{University of Liverpool, Liverpool L69 7ZE, United Kingdom}
\author{I.~Fedorko}
\affiliation{Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy}
\author{W.T.~Fedorko}
\affiliation{Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637}
\author{R.G.~Feild}
\affiliation{Yale University, New Haven, Connecticut 06520}
\author{M.~Feindt}
\affiliation{Institut f\"{u}r Experimentelle Kernphysik, Universit\"{a}t Karlsruhe, 76128 Karlsruhe, Germany}
\author{J.P.~Fernandez}
\affiliation{Centro de Investigaciones Energeticas Medioambientales y Tecnologicas, E-28040 Madrid, Spain}
\author{R.~Field}
\affiliation{University of Florida, Gainesville, Florida  32611}
\author{G.~Flanagan}
\affiliation{Purdue University, West Lafayette, Indiana 47907}
\author{L.R.~Flores-Castillo}
\affiliation{University of Pittsburgh, Pittsburgh, Pennsylvania 15260}
\author{A.~Foland}
\affiliation{Harvard University, Cambridge, Massachusetts 02138}
\author{S.~Forrester}
\affiliation{University of California, Davis, Davis, California  95616}
\author{G.W.~Foster}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{M.~Franklin}
\affiliation{Harvard University, Cambridge, Massachusetts 02138}
\author{J.C.~Freeman}
\affiliation{Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720}
\author{I.~Furic}
\affiliation{Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637}
\author{M.~Gallinaro}
\affiliation{The Rockefeller University, New York, New York 10021}
\author{J.~Galyardt}
\affiliation{Carnegie Mellon University, Pittsburgh, PA  15213}
\author{J.E.~Garcia}
\affiliation{Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy}
\author{M.~Garcia~Sciveres}
\affiliation{Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720}
\author{A.F.~Garfinkel}
\affiliation{Purdue University, West Lafayette, Indiana 47907}
\author{C.~Gay}
\affiliation{Yale University, New Haven, Connecticut 06520}
\author{H.~Gerberich}
\affiliation{University of Illinois, Urbana, Illinois 61801}
\author{D.~Gerdes}
\affiliation{University of Michigan, Ann Arbor, Michigan 48109}
\author{S.~Giagu}
\affiliation{Istituto Nazionale di Fisica Nucleare, Sezione di Roma 1, University of Rome ``La Sapienza," I-00185 Roma, Italy}
\author{P.~Giannetti}
\affiliation{Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy}
\author{A.~Gibson}
\affiliation{Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720}
\author{K.~Gibson}
\affiliation{Carnegie Mellon University, Pittsburgh, PA  15213}
\author{C.~Ginsburg}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{N.~Giokaris}
\affiliation{Joint Institute for Nuclear Research, RU-141980 Dubna, Russia}
\author{K.~Giolo}
\affiliation{Purdue University, West Lafayette, Indiana 47907}
\author{M.~Giordani}
\affiliation{Istituto Nazionale di Fisica Nucleare, University of Trieste/\ Udine, Italy}
\author{P.~Giromini}
\affiliation{Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati, Italy}
\author{M.~Giunta}
\affiliation{Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy}
\author{G.~Giurgiu}
\affiliation{Carnegie Mellon University, Pittsburgh, PA  15213}
\author{V.~Glagolev}
\affiliation{Joint Institute for Nuclear Research, RU-141980 Dubna, Russia}
\author{D.~Glenzinski}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{M.~Gold}
\affiliation{University of New Mexico, Albuquerque, New Mexico 87131}
\author{N.~Goldschmidt}
\affiliation{University of Michigan, Ann Arbor, Michigan 48109}
\author{J.~Goldstein}
\affiliation{University of Oxford, Oxford OX1 3RH, United Kingdom}
\author{G.~Gomez}
\affiliation{Instituto de Fisica de Cantabria, CSIC-University of Cantabria, 39005 Santander, Spain}
\author{G.~Gomez-Ceballos}
\affiliation{Instituto de Fisica de Cantabria, CSIC-University of Cantabria, 39005 Santander, Spain}
\author{M.~Goncharov}
\affiliation{Texas A\&M University, College Station, Texas 77843}
\author{O.~Gonz\'{a}lez}
\affiliation{Centro de Investigaciones Energeticas Medioambientales y Tecnologicas, E-28040 Madrid, Spain}
\author{I.~Gorelov}
\affiliation{University of New Mexico, Albuquerque, New Mexico 87131}
\author{A.T.~Goshaw}
\affiliation{Duke University, Durham, North Carolina  27708}
\author{Y.~Gotra}
\affiliation{University of Pittsburgh, Pittsburgh, Pennsylvania 15260}
\author{K.~Goulianos}
\affiliation{The Rockefeller University, New York, New York 10021}
\author{A.~Gresele}
\affiliation{University of Padova, Istituto Nazionale di Fisica Nucleare, Sezione di Padova-Trento, I-35131 Padova, Italy}
\author{M.~Griffiths}
\affiliation{University of Liverpool, Liverpool L69 7ZE, United Kingdom}
\author{S.~Grinstein}
\affiliation{Harvard University, Cambridge, Massachusetts 02138}
\author{C.~Grosso-Pilcher}
\affiliation{Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637}
\author{R.C.~Group}
\affiliation{University of Florida, Gainesville, Florida  32611}
\author{U.~Grundler}
\affiliation{University of Illinois, Urbana, Illinois 61801}
\author{J.~Guimaraes~da~Costa}
\affiliation{Harvard University, Cambridge, Massachusetts 02138}
\author{Z.~Gunay-Unalan}
\affiliation{Michigan State University, East Lansing, Michigan  48824}
\author{C.~Haber}
\affiliation{Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720}
\author{S.R.~Hahn}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{K.~Hahn}
\affiliation{University of Pennsylvania, Philadelphia, Pennsylvania 19104}
\author{E.~Halkiadakis}
\affiliation{Rutgers University, Piscataway, New Jersey 08855}
\author{A.~Hamilton}
\affiliation{Institute of Particle Physics: McGill University, Montr\'{e}al, Canada H3A~2T8; and University of Toronto, Toronto, Canada M5S~1A7}
\author{B.-Y.~Han}
\affiliation{University of Rochester, Rochester, New York 14627}
\author{J.Y.~Han}
\affiliation{University of Rochester, Rochester, New York 14627}
\author{R.~Handler}
\affiliation{University of Wisconsin, Madison, Wisconsin 53706}
\author{F.~Happacher}
\affiliation{Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati, Italy}
\author{K.~Hara}
\affiliation{University of Tsukuba, Tsukuba, Ibaraki 305, Japan}
\author{M.~Hare}
\affiliation{Tufts University, Medford, Massachusetts 02155}
\author{S.~Harper}
\affiliation{University of Oxford, Oxford OX1 3RH, United Kingdom}
\author{R.F.~Harr}
\affiliation{Wayne State University, Detroit, Michigan  48201}
\author{R.M.~Harris}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{K.~Hatakeyama}
\affiliation{The Rockefeller University, New York, New York 10021}
\author{J.~Hauser}
\affiliation{University of California, Los Angeles, Los Angeles, California  90024}
\author{C.~Hays}
\affiliation{Duke University, Durham, North Carolina  27708}
\author{A.~Heijboer}
\affiliation{University of Pennsylvania, Philadelphia, Pennsylvania 19104}
\author{B.~Heinemann}
\affiliation{University of Liverpool, Liverpool L69 7ZE, United Kingdom}
\author{J.~Heinrich}
\affiliation{University of Pennsylvania, Philadelphia, Pennsylvania 19104}
\author{M.~Herndon}
\affiliation{University of Wisconsin, Madison, Wisconsin 53706}
\author{D.~Hidas}
\affiliation{Duke University, Durham, North Carolina  27708}
\author{C.S.~Hill}
\affiliation{University of California, Santa Barbara, Santa Barbara, California 93106}
\author{D.~Hirschbuehl}
\affiliation{Institut f\"{u}r Experimentelle Kernphysik, Universit\"{a}t Karlsruhe, 76128 Karlsruhe, Germany}
\author{A.~Hocker}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{A.~Holloway}
\affiliation{Harvard University, Cambridge, Massachusetts 02138}
\author{S.~Hou}
\affiliation{Institute of Physics, Academia Sinica, Taipei, Taiwan 11529, Republic of China}
\author{M.~Houlden}
\affiliation{University of Liverpool, Liverpool L69 7ZE, United Kingdom}
\author{S.-C.~Hsu}
\affiliation{University of California, San Diego, La Jolla, California  92093}
\author{B.T.~Huffman}
\affiliation{University of Oxford, Oxford OX1 3RH, United Kingdom}
\author{R.E.~Hughes}
\affiliation{The Ohio State University, Columbus, Ohio  43210}
\author{J.~Huston}
\affiliation{Michigan State University, East Lansing, Michigan  48824}
\author{J.~Incandela}
\affiliation{University of California, Santa Barbara, Santa Barbara, California 93106}
\author{G.~Introzzi}
\affiliation{Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy}
\author{M.~Iori}
\affiliation{Istituto Nazionale di Fisica Nucleare, Sezione di Roma 1, University of Rome ``La Sapienza," I-00185 Roma, Italy}
\author{Y.~Ishizawa}
\affiliation{University of Tsukuba, Tsukuba, Ibaraki 305, Japan}
\author{A.~Ivanov}
\affiliation{University of California, Davis, Davis, California  95616}
\author{B.~Iyutin}
\affiliation{Massachusetts Institute of Technology, Cambridge, Massachusetts  02139}
\author{E.~James}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{D.~Jang}
\affiliation{Rutgers University, Piscataway, New Jersey 08855}
\author{B.~Jayatilaka}
\affiliation{University of Michigan, Ann Arbor, Michigan 48109}
\author{D.~Jeans}
\affiliation{Istituto Nazionale di Fisica Nucleare, Sezione di Roma 1, University of Rome ``La Sapienza," I-00185 Roma, Italy}
\author{H.~Jensen}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{E.J.~Jeon}
\affiliation{Center for High Energy Physics: Kyungpook National University, Taegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; and SungKyunKwan University, Suwon 440-746, Korea}
\author{S.~Jindariani}
\affiliation{University of Florida, Gainesville, Florida  32611}
\author{M.~Jones}
\affiliation{Purdue University, West Lafayette, Indiana 47907}
\author{K.K.~Joo}
\affiliation{Center for High Energy Physics: Kyungpook National University, Taegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; and SungKyunKwan University, Suwon 440-746, Korea}
\author{S.Y.~Jun}
\affiliation{Carnegie Mellon University, Pittsburgh, PA  15213}
\author{T.R.~Junk}
\affiliation{University of Illinois, Urbana, Illinois 61801}
\author{T.~Kamon}
\affiliation{Texas A\&M University, College Station, Texas 77843}
\author{J.~Kang}
\affiliation{University of Michigan, Ann Arbor, Michigan 48109}
\author{P.E.~Karchin}
\affiliation{Wayne State University, Detroit, Michigan  48201}
\author{Y.~Kato}
\affiliation{Osaka City University, Osaka 588, Japan}
\author{Y.~Kemp}
\affiliation{Institut f\"{u}r Experimentelle Kernphysik, Universit\"{a}t Karlsruhe, 76128 Karlsruhe, Germany}
\author{R.~Kephart}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{U.~Kerzel}
\affiliation{Institut f\"{u}r Experimentelle Kernphysik, Universit\"{a}t Karlsruhe, 76128 Karlsruhe, Germany}
\author{V.~Khotilovich}
\affiliation{Texas A\&M University, College Station, Texas 77843}
\author{B.~Kilminster}
\affiliation{The Ohio State University, Columbus, Ohio  43210}
\author{D.H.~Kim}
\affiliation{Center for High Energy Physics: Kyungpook National University, Taegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; and SungKyunKwan University, Suwon 440-746, Korea}
\author{H.S.~Kim}
\affiliation{Center for High Energy Physics: Kyungpook National University, Taegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; and SungKyunKwan University, Suwon 440-746, Korea}
\author{J.E.~Kim}
\affiliation{Center for High Energy Physics: Kyungpook National University, Taegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; and SungKyunKwan University, Suwon 440-746, Korea}
\author{M.J.~Kim}
\affiliation{Carnegie Mellon University, Pittsburgh, PA  15213}
\author{S.B.~Kim}
\affiliation{Center for High Energy Physics: Kyungpook National University, Taegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; and SungKyunKwan University, Suwon 440-746, Korea}
\author{S.H.~Kim}
\affiliation{University of Tsukuba, Tsukuba, Ibaraki 305, Japan}
\author{Y.K.~Kim}
\affiliation{Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637}
\author{L.~Kirsch}
\affiliation{Brandeis University, Waltham, Massachusetts 02254}
\author{S.~Klimenko}
\affiliation{University of Florida, Gainesville, Florida  32611}
\author{M.~Klute}
\affiliation{Massachusetts Institute of Technology, Cambridge, Massachusetts  02139}
\author{B.~Knuteson}
\affiliation{Massachusetts Institute of Technology, Cambridge, Massachusetts  02139}
\author{B.R.~Ko}
\affiliation{Duke University, Durham, North Carolina  27708}
\author{H.~Kobayashi}
\affiliation{University of Tsukuba, Tsukuba, Ibaraki 305, Japan}
\author{K.~Kondo}
\affiliation{Waseda University, Tokyo 169, Japan}
\author{D.J.~Kong}
\affiliation{Center for High Energy Physics: Kyungpook National University, Taegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; and SungKyunKwan University, Suwon 440-746, Korea}
\author{J.~Konigsberg}
\affiliation{University of Florida, Gainesville, Florida  32611}
\author{A.~Korytov}
\affiliation{University of Florida, Gainesville, Florida  32611}
\author{A.V.~Kotwal}
\affiliation{Duke University, Durham, North Carolina  27708}
\author{A.~Kovalev}
\affiliation{University of Pennsylvania, Philadelphia, Pennsylvania 19104}
\author{A.~Kraan}
\affiliation{University of Pennsylvania, Philadelphia, Pennsylvania 19104}
\author{J.~Kraus}
\affiliation{University of Illinois, Urbana, Illinois 61801}
\author{I.~Kravchenko}
\affiliation{Massachusetts Institute of Technology, Cambridge, Massachusetts  02139}
\author{M.~Kreps}
\affiliation{Institut f\"{u}r Experimentelle Kernphysik, Universit\"{a}t Karlsruhe, 76128 Karlsruhe, Germany}
\author{J.~Kroll}
\affiliation{University of Pennsylvania, Philadelphia, Pennsylvania 19104}
\author{N.~Krumnack}
\affiliation{Baylor University, Waco, Texas  76798}
\author{M.~Kruse}
\affiliation{Duke University, Durham, North Carolina  27708}
\author{V.~Krutelyov}
\affiliation{Texas A\&M University, College Station, Texas 77843}
\author{S.~E.~Kuhlmann}
\affiliation{Argonne National Laboratory, Argonne, Illinois 60439}
\author{Y.~Kusakabe}
\affiliation{Waseda University, Tokyo 169, Japan}
\author{S.~Kwang}
\affiliation{Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637}
\author{A.T.~Laasanen}
\affiliation{Purdue University, West Lafayette, Indiana 47907}
\author{S.~Lai}
\affiliation{Institute of Particle Physics: McGill University, Montr\'{e}al, Canada H3A~2T8; and University of Toronto, Toronto, Canada M5S~1A7}
\author{S.~Lami}
\affiliation{Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy}
\author{S.~Lammel}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{M.~Lancaster}
\affiliation{University College London, London WC1E 6BT, United Kingdom}
\author{R.L.~Lander}
\affiliation{University of California, Davis, Davis, California  95616}
\author{K.~Lannon}
\affiliation{The Ohio State University, Columbus, Ohio  43210}
\author{A.~Lath}
\affiliation{Rutgers University, Piscataway, New Jersey 08855}
\author{G.~Latino}
\affiliation{Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy}
\author{I.~Lazzizzera}
\affiliation{University of Padova, Istituto Nazionale di Fisica Nucleare, Sezione di Padova-Trento, I-35131 Padova, Italy}
\author{T.~LeCompte}
\affiliation{Argonne National Laboratory, Argonne, Illinois 60439}
\author{J.~Lee}
\affiliation{University of Rochester, Rochester, New York 14627}
\author{J.~Lee}
\affiliation{Center for High Energy Physics: Kyungpook National University, Taegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; and SungKyunKwan University, Suwon 440-746, Korea}
\author{Y.J.~Lee}
\affiliation{Center for High Energy Physics: Kyungpook National University, Taegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; and SungKyunKwan University, Suwon 440-746, Korea}
\author{S.W.~Lee}
\affiliation{Texas A\&M University, College Station, Texas 77843}
\author{R.~Lef\`{e}vre}
\affiliation{Institut de Fisica d'Altes Energies, Universitat Autonoma de Barcelona, E-08193, Bellaterra (Barcelona), Spain}
\author{N.~Leonardo}
\affiliation{Massachusetts Institute of Technology, Cambridge, Massachusetts  02139}
\author{S.~Leone}
\affiliation{Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy}
\author{S.~Levy}
\affiliation{Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637}
\author{J.D.~Lewis}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{C.~Lin}
\affiliation{Yale University, New Haven, Connecticut 06520}
\author{C.S.~Lin}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{M.~Lindgren}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{E.~Lipeles}
\affiliation{University of California, San Diego, La Jolla, California  92093}
\author{T.M.~Liss}
\affiliation{University of Illinois, Urbana, Illinois 61801}
\author{A.~Lister}
\affiliation{University of Geneva, CH-1211 Geneva 4, Switzerland}
\author{D.O.~Litvintsev}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{T.~Liu}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{N.S.~Lockyer}
\affiliation{University of Pennsylvania, Philadelphia, Pennsylvania 19104}
\author{A.~Loginov}
\affiliation{Institution for Theoretical and Experimental Physics, ITEP, Moscow 117259, Russia}
\author{M.~Loreti}
\affiliation{University of Padova, Istituto Nazionale di Fisica Nucleare, Sezione di Padova-Trento, I-35131 Padova, Italy}
\author{P.~Loverre}
\affiliation{Istituto Nazionale di Fisica Nucleare, Sezione di Roma 1, University of Rome ``La Sapienza," I-00185 Roma, Italy}
\author{R.-S.~Lu}
\affiliation{Institute of Physics, Academia Sinica, Taipei, Taiwan 11529, Republic of China}
\author{D.~Lucchesi}
\affiliation{University of Padova, Istituto Nazionale di Fisica Nucleare, Sezione di Padova-Trento, I-35131 Padova, Italy}
\author{P.~Lujan}
\affiliation{Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720}
\author{P.~Lukens}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{G.~Lungu}
\affiliation{University of Florida, Gainesville, Florida  32611}
\author{L.~Lyons}
\affiliation{University of Oxford, Oxford OX1 3RH, United Kingdom}
\author{J.~Lys}
\affiliation{Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720}
\author{R.~Lysak}
\affiliation{Institute of Physics, Academia Sinica, Taipei, Taiwan 11529, Republic of China}
\author{E.~Lytken}
\affiliation{Purdue University, West Lafayette, Indiana 47907}
\author{P.~Mack}
\affiliation{Institut f\"{u}r Experimentelle Kernphysik, Universit\"{a}t Karlsruhe, 76128 Karlsruhe, Germany}
\author{D.~MacQueen}
\affiliation{Institute of Particle Physics: McGill University, Montr\'{e}al, Canada H3A~2T8; and University of Toronto, Toronto, Canada M5S~1A7}
\author{R.~Madrak}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{K.~Maeshima}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{T.~Maki}
\affiliation{Division of High Energy Physics, Department of Physics, University of Helsinki and Helsinki Institute of Physics, FIN-00014, Helsinki, Finland}
\author{P.~Maksimovic}
\affiliation{The Johns Hopkins University, Baltimore, Maryland 21218}
\author{S.~Malde}
\affiliation{University of Oxford, Oxford OX1 3RH, United Kingdom}
\author{G.~Manca}
\affiliation{University of Liverpool, Liverpool L69 7ZE, United Kingdom}
\author{F.~Margaroli}
\affiliation{Istituto Nazionale di Fisica Nucleare, University of Bologna, I-40127 Bologna, Italy}
\author{R.~Marginean}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{C.~Marino}
\affiliation{University of Illinois, Urbana, Illinois 61801}
\author{A.~Martin}
\affiliation{Yale University, New Haven, Connecticut 06520}
\author{V.~Martin}
\affiliation{Northwestern University, Evanston, Illinois  60208}
\author{M.~Mart\'{\i}nez}
\affiliation{Institut de Fisica d'Altes Energies, Universitat Autonoma de Barcelona, E-08193, Bellaterra (Barcelona), Spain}
\author{T.~Maruyama}
\affiliation{University of Tsukuba, Tsukuba, Ibaraki 305, Japan}
\author{H.~Matsunaga}
\affiliation{University of Tsukuba, Tsukuba, Ibaraki 305, Japan}
\author{M.E.~Mattson}
\affiliation{Wayne State University, Detroit, Michigan  48201}
\author{R.~Mazini}
\affiliation{Institute of Particle Physics: McGill University, Montr\'{e}al, Canada H3A~2T8; and University of Toronto, Toronto, Canada M5S~1A7}
\author{P.~Mazzanti}
\affiliation{Istituto Nazionale di Fisica Nucleare, University of Bologna, I-40127 Bologna, Italy}
\author{K.S.~McFarland}
\affiliation{University of Rochester, Rochester, New York 14627}
\author{P.~McIntyre}
\affiliation{Texas A\&M University, College Station, Texas 77843}
\author{R.~McNulty}
\affiliation{University of Liverpool, Liverpool L69 7ZE, United Kingdom}
\author{A.~Mehta}
\affiliation{University of Liverpool, Liverpool L69 7ZE, United Kingdom}
\author{S.~Menzemer}
\affiliation{Instituto de Fisica de Cantabria, CSIC-University of Cantabria, 39005 Santander, Spain}
\author{A.~Menzione}
\affiliation{Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy}
\author{P.~Merkel}
\affiliation{Purdue University, West Lafayette, Indiana 47907}
\author{C.~Mesropian}
\affiliation{The Rockefeller University, New York, New York 10021}
\author{A.~Messina}
\affiliation{Istituto Nazionale di Fisica Nucleare, Sezione di Roma 1, University of Rome ``La Sapienza," I-00185 Roma, Italy}
\author{M.~von~der~Mey}
\affiliation{University of California, Los Angeles, Los Angeles, California  90024}
\author{T.~Miao}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{N.~Miladinovic}
\affiliation{Brandeis University, Waltham, Massachusetts 02254}
\author{J.~Miles}
\affiliation{Massachusetts Institute of Technology, Cambridge, Massachusetts  02139}
\author{R.~Miller}
\affiliation{Michigan State University, East Lansing, Michigan  48824}
\author{J.S.~Miller}
\affiliation{University of Michigan, Ann Arbor, Michigan 48109}
\author{C.~Mills}
\affiliation{University of California, Santa Barbara, Santa Barbara, California 93106}
\author{M.~Milnik}
\affiliation{Institut f\"{u}r Experimentelle Kernphysik, Universit\"{a}t Karlsruhe, 76128 Karlsruhe, Germany}
\author{R.~Miquel}
\affiliation{Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720}
\author{A.~Mitra}
\affiliation{Institute of Physics, Academia Sinica, Taipei, Taiwan 11529, Republic of China}
\author{G.~Mitselmakher}
\affiliation{University of Florida, Gainesville, Florida  32611}
\author{A.~Miyamoto}
\affiliation{High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305, Japan}
\author{N.~Moggi}
\affiliation{Istituto Nazionale di Fisica Nucleare, University of Bologna, I-40127 Bologna, Italy}
\author{B.~Mohr}
\affiliation{University of California, Los Angeles, Los Angeles, California  90024}
\author{R.~Moore}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{M.~Morello}
\affiliation{Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy}
\author{P.~Movilla~Fernandez}
\affiliation{Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720}
\author{J.~M\"ulmenst\"adt}
\affiliation{Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720}
\author{A.~Mukherjee}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{Th.~Muller}
\affiliation{Institut f\"{u}r Experimentelle Kernphysik, Universit\"{a}t Karlsruhe, 76128 Karlsruhe, Germany}
\author{R.~Mumford}
\affiliation{The Johns Hopkins University, Baltimore, Maryland 21218}
\author{P.~Murat}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{J.~Nachtman}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{J.~Naganoma}
\affiliation{Waseda University, Tokyo 169, Japan}
\author{S.~Nahn}
\affiliation{Massachusetts Institute of Technology, Cambridge, Massachusetts  02139}
\author{I.~Nakano}
\affiliation{Okayama University, Okayama 700-8530, Japan}
\author{A.~Napier}
\affiliation{Tufts University, Medford, Massachusetts 02155}
\author{D.~Naumov}
\affiliation{University of New Mexico, Albuquerque, New Mexico 87131}
\author{V.~Necula}
\affiliation{University of Florida, Gainesville, Florida  32611}
\author{C.~Neu}
\affiliation{University of Pennsylvania, Philadelphia, Pennsylvania 19104}
\author{M.S.~Neubauer}
\affiliation{University of California, San Diego, La Jolla, California  92093}
\author{J.~Nielsen}
\affiliation{Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720}
\author{T.~Nigmanov}
\affiliation{University of Pittsburgh, Pittsburgh, Pennsylvania 15260}
\author{L.~Nodulman}
\affiliation{Argonne National Laboratory, Argonne, Illinois 60439}
\author{O.~Norniella}
\affiliation{Institut de Fisica d'Altes Energies, Universitat Autonoma de Barcelona, E-08193, Bellaterra (Barcelona), Spain}
\author{E.~Nurse}
\affiliation{University College London, London WC1E 6BT, United Kingdom}
\author{T.~Ogawa}
\affiliation{Waseda University, Tokyo 169, Japan}
\author{S.H.~Oh}
\affiliation{Duke University, Durham, North Carolina  27708}
\author{Y.D.~Oh}
\affiliation{Center for High Energy Physics: Kyungpook National University, Taegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; and SungKyunKwan University, Suwon 440-746, Korea}
\author{T.~Okusawa}
\affiliation{Osaka City University, Osaka 588, Japan}
\author{R.~Oldeman}
\affiliation{University of Liverpool, Liverpool L69 7ZE, United Kingdom}
\author{R.~Orava}
\affiliation{Division of High Energy Physics, Department of Physics, University of Helsinki and Helsinki Institute of Physics, FIN-00014, Helsinki, Finland}
\author{K.~Osterberg}
\affiliation{Division of High Energy Physics, Department of Physics, University of Helsinki and Helsinki Institute of Physics, FIN-00014, Helsinki, Finland}
\author{C.~Pagliarone}
\affiliation{Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy}
\author{E.~Palencia}
\affiliation{Instituto de Fisica de Cantabria, CSIC-University of Cantabria, 39005 Santander, Spain}
\author{R.~Paoletti}
\affiliation{Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy}
\author{V.~Papadimitriou}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{A.A.~Paramonov}
\affiliation{Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637}
\author{B.~Parks}
\affiliation{The Ohio State University, Columbus, Ohio  43210}
\author{S.~Pashapour}
\affiliation{Institute of Particle Physics: McGill University, Montr\'{e}al, Canada H3A~2T8; and University of Toronto, Toronto, Canada M5S~1A7}
\author{J.~Patrick}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{G.~Pauletta}
\affiliation{Istituto Nazionale di Fisica Nucleare, University of Trieste/\ Udine, Italy}
\author{M.~Paulini}
\affiliation{Carnegie Mellon University, Pittsburgh, PA  15213}
\author{C.~Paus}
\affiliation{Massachusetts Institute of Technology, Cambridge, Massachusetts  02139}
\author{D.E.~Pellett}
\affiliation{University of California, Davis, Davis, California  95616}
\author{A.~Penzo}
\affiliation{Istituto Nazionale di Fisica Nucleare, University of Trieste/\ Udine, Italy}
\author{T.J.~Phillips}
\affiliation{Duke University, Durham, North Carolina  27708}
\author{G.~Piacentino}
\affiliation{Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy}
\author{J.~Piedra}
\affiliation{LPNHE, Universite Pierre et Marie Curie/IN2P3-CNRS, UMR7585, Paris, F-75252 France}
\author{L.~Pinera}
\affiliation{University of Florida, Gainesville, Florida  32611}
\author{K.~Pitts}
\affiliation{University of Illinois, Urbana, Illinois 61801}
\author{C.~Plager}
\affiliation{University of California, Los Angeles, Los Angeles, California  90024}
\author{L.~Pondrom}
\affiliation{University of Wisconsin, Madison, Wisconsin 53706}
\author{X.~Portell}
\affiliation{Institut de Fisica d'Altes Energies, Universitat Autonoma de Barcelona, E-08193, Bellaterra (Barcelona), Spain}
\author{O.~Poukhov}
\affiliation{Joint Institute for Nuclear Research, RU-141980 Dubna, Russia}
\author{N.~Pounder}
\affiliation{University of Oxford, Oxford OX1 3RH, United Kingdom}
\author{F.~Prakoshyn}
\affiliation{Joint Institute for Nuclear Research, RU-141980 Dubna, Russia}
\author{A.~Pronko}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{J.~Proudfoot}
\affiliation{Argonne National Laboratory, Argonne, Illinois 60439}
\author{F.~Ptohos}
\affiliation{Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati, Italy}
\author{G.~Punzi}
\affiliation{Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy}
\author{J.~Pursley}
\affiliation{The Johns Hopkins University, Baltimore, Maryland 21218}
\author{J.~Rademacker}
\affiliation{University of Oxford, Oxford OX1 3RH, United Kingdom}
\author{A.~Rahaman}
\affiliation{University of Pittsburgh, Pittsburgh, Pennsylvania 15260}
\author{A.~Rakitin}
\affiliation{Massachusetts Institute of Technology, Cambridge, Massachusetts  02139}
\author{S.~Rappoccio}
\affiliation{Harvard University, Cambridge, Massachusetts 02138}
\author{F.~Ratnikov}
\affiliation{Rutgers University, Piscataway, New Jersey 08855}
\author{B.~Reisert}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{V.~Rekovic}
\affiliation{University of New Mexico, Albuquerque, New Mexico 87131}
\author{N.~van~Remortel}
\affiliation{Division of High Energy Physics, Department of Physics, University of Helsinki and Helsinki Institute of Physics, FIN-00014, Helsinki, Finland}
\author{P.~Renton}
\affiliation{University of Oxford, Oxford OX1 3RH, United Kingdom}
\author{M.~Rescigno}
\affiliation{Istituto Nazionale di Fisica Nucleare, Sezione di Roma 1, University of Rome ``La Sapienza," I-00185 Roma, Italy}
\author{S.~Richter}
\affiliation{Institut f\"{u}r Experimentelle Kernphysik, Universit\"{a}t Karlsruhe, 76128 Karlsruhe, Germany}
\author{F.~Rimondi}
\affiliation{Istituto Nazionale di Fisica Nucleare, University of Bologna, I-40127 Bologna, Italy}
\author{L.~Ristori}
\affiliation{Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy}
\author{W.J.~Robertson}
\affiliation{Duke University, Durham, North Carolina  27708}
\author{A.~Robson}
\affiliation{Glasgow University, Glasgow G12 8QQ, United Kingdom}
\author{T.~Rodrigo}
\affiliation{Instituto de Fisica de Cantabria, CSIC-University of Cantabria, 39005 Santander, Spain}
\author{E.~Rogers}
\affiliation{University of Illinois, Urbana, Illinois 61801}
\author{S.~Rolli}
\affiliation{Tufts University, Medford, Massachusetts 02155}
\author{R.~Roser}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{M.~Rossi}
\affiliation{Istituto Nazionale di Fisica Nucleare, University of Trieste/\ Udine, Italy}
\author{R.~Rossin}
\affiliation{University of Florida, Gainesville, Florida  32611}
\author{C.~Rott}
\affiliation{Purdue University, West Lafayette, Indiana 47907}
\author{A.~Ruiz}
\affiliation{Instituto de Fisica de Cantabria, CSIC-University of Cantabria, 39005 Santander, Spain}
\author{J.~Russ}
\affiliation{Carnegie Mellon University, Pittsburgh, PA  15213}
\author{V.~Rusu}
\affiliation{Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637}
\author{H.~Saarikko}
\affiliation{Division of High Energy Physics, Department of Physics, University of Helsinki and Helsinki Institute of Physics, FIN-00014, Helsinki, Finland}
\author{S.~Sabik}
\affiliation{Institute of Particle Physics: McGill University, Montr\'{e}al, Canada H3A~2T8; and University of Toronto, Toronto, Canada M5S~1A7}
\author{A.~Safonov}
\affiliation{Texas A\&M University, College Station, Texas 77843}
\author{W.K.~Sakumoto}
\affiliation{University of Rochester, Rochester, New York 14627}
\author{G.~Salamanna}
\affiliation{Istituto Nazionale di Fisica Nucleare, Sezione di Roma 1, University of Rome ``La Sapienza," I-00185 Roma, Italy}
\author{O.~Salt\'{o}}
\affiliation{Institut de Fisica d'Altes Energies, Universitat Autonoma de Barcelona, E-08193, Bellaterra (Barcelona), Spain}
\author{D.~Saltzberg}
\affiliation{University of California, Los Angeles, Los Angeles, California  90024}
\author{C.~Sanchez}
\affiliation{Institut de Fisica d'Altes Energies, Universitat Autonoma de Barcelona, E-08193, Bellaterra (Barcelona), Spain}
\author{L.~Santi}
\affiliation{Istituto Nazionale di Fisica Nucleare, University of Trieste/\ Udine, Italy}
\author{S.~Sarkar}
\affiliation{Istituto Nazionale di Fisica Nucleare, Sezione di Roma 1, University of Rome ``La Sapienza," I-00185 Roma, Italy}
\author{L.~Sartori}
\affiliation{Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy}
\author{K.~Sato}
\affiliation{University of Tsukuba, Tsukuba, Ibaraki 305, Japan}
\author{P.~Savard}
\affiliation{Institute of Particle Physics: McGill University, Montr\'{e}al, Canada H3A~2T8; and University of Toronto, Toronto, Canada M5S~1A7}
\author{A.~Savoy-Navarro}
\affiliation{LPNHE, Universite Pierre et Marie Curie/IN2P3-CNRS, UMR7585, Paris, F-75252 France}
\author{T.~Scheidle}
\affiliation{Institut f\"{u}r Experimentelle Kernphysik, Universit\"{a}t Karlsruhe, 76128 Karlsruhe, Germany}
\author{P.~Schlabach}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{E.E.~Schmidt}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{M.P.~Schmidt}
\affiliation{Yale University, New Haven, Connecticut 06520}
\author{M.~Schmitt}
\affiliation{Northwestern University, Evanston, Illinois  60208}
\author{T.~Schwarz}
\affiliation{University of Michigan, Ann Arbor, Michigan 48109}
\author{L.~Scodellaro}
\affiliation{Instituto de Fisica de Cantabria, CSIC-University of Cantabria, 39005 Santander, Spain}
\author{A.L.~Scott}
\affiliation{University of California, Santa Barbara, Santa Barbara, California 93106}
\author{A.~Scribano}
\affiliation{Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy}
\author{F.~Scuri}
\affiliation{Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy}
\author{A.~Sedov}
\affiliation{Purdue University, West Lafayette, Indiana 47907}
\author{S.~Seidel}
\affiliation{University of New Mexico, Albuquerque, New Mexico 87131}
\author{Y.~Seiya}
\affiliation{Osaka City University, Osaka 588, Japan}
\author{A.~Semenov}
\affiliation{Joint Institute for Nuclear Research, RU-141980 Dubna, Russia}
\author{L.~Sexton-Kennedy}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{I.~Sfiligoi}
\affiliation{Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati, Italy}
\author{M.D.~Shapiro}
\affiliation{Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720}
\author{T.~Shears}
\affiliation{University of Liverpool, Liverpool L69 7ZE, United Kingdom}
\author{P.F.~Shepard}
\affiliation{University of Pittsburgh, Pittsburgh, Pennsylvania 15260}
\author{D.~Sherman}
\affiliation{Harvard University, Cambridge, Massachusetts 02138}
\author{M.~Shimojima}
\affiliation{University of Tsukuba, Tsukuba, Ibaraki 305, Japan}
\author{M.~Shochet}
\affiliation{Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637}
\author{Y.~Shon}
\affiliation{University of Wisconsin, Madison, Wisconsin 53706}
\author{I.~Shreyber}
\affiliation{Institution for Theoretical and Experimental Physics, ITEP, Moscow 117259, Russia}
\author{A.~Sidoti}
\affiliation{LPNHE, Universite Pierre et Marie Curie/IN2P3-CNRS, UMR7585, Paris, F-75252 France}
\author{P.~Sinervo}
\affiliation{Institute of Particle Physics: McGill University, Montr\'{e}al, Canada H3A~2T8; and University of Toronto, Toronto, Canada M5S~1A7}
\author{A.~Sisakyan}
\affiliation{Joint Institute for Nuclear Research, RU-141980 Dubna, Russia}
\author{J.~Sjolin}
\affiliation{University of Oxford, Oxford OX1 3RH, United Kingdom}
\author{A.~Skiba}
\affiliation{Institut f\"{u}r Experimentelle Kernphysik, Universit\"{a}t Karlsruhe, 76128 Karlsruhe, Germany}
\author{A.J.~Slaughter}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{K.~Sliwa}
\affiliation{Tufts University, Medford, Massachusetts 02155}
\author{J.R.~Smith}
\affiliation{University of California, Davis, Davis, California  95616}
\author{F.D.~Snider}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{R.~Snihur}
\affiliation{Institute of Particle Physics: McGill University, Montr\'{e}al, Canada H3A~2T8; and University of Toronto, Toronto, Canada M5S~1A7}
\author{M.~Soderberg}
\affiliation{University of Michigan, Ann Arbor, Michigan 48109}
\author{A.~Soha}
\affiliation{University of California, Davis, Davis, California  95616}
\author{S.~Somalwar}
\affiliation{Rutgers University, Piscataway, New Jersey 08855}
\author{V.~Sorin}
\affiliation{Michigan State University, East Lansing, Michigan  48824}
\author{J.~Spalding}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{M.~Spezziga}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{F.~Spinella}
\affiliation{Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy}
\author{T.~Spreitzer}
\affiliation{Institute of Particle Physics: McGill University, Montr\'{e}al, Canada H3A~2T8; and University of Toronto, Toronto, Canada M5S~1A7}
\author{P.~Squillacioti}
\affiliation{Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy}
\author{M.~Stanitzki}
\affiliation{Yale University, New Haven, Connecticut 06520}
\author{A.~Staveris-Polykalas}
\affiliation{Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy}
\author{R.~St.~Denis}
\affiliation{Glasgow University, Glasgow G12 8QQ, United Kingdom}
\author{B.~Stelzer}
\affiliation{University of California, Los Angeles, Los Angeles, California  90024}
\author{O.~Stelzer-Chilton}
\affiliation{University of Oxford, Oxford OX1 3RH, United Kingdom}
\author{D.~Stentz}
\affiliation{Northwestern University, Evanston, Illinois  60208}
\author{J.~Strologas}
\affiliation{University of New Mexico, Albuquerque, New Mexico 87131}
\author{D.~Stuart}
\affiliation{University of California, Santa Barbara, Santa Barbara, California 93106}
\author{J.S.~Suh}
\affiliation{Center for High Energy Physics: Kyungpook National University, Taegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; and SungKyunKwan University, Suwon 440-746, Korea}
\author{A.~Sukhanov}
\affiliation{University of Florida, Gainesville, Florida  32611}
\author{K.~Sumorok}
\affiliation{Massachusetts Institute of Technology, Cambridge, Massachusetts  02139}
\author{H.~Sun}
\affiliation{Tufts University, Medford, Massachusetts 02155}
\author{T.~Suzuki}
\affiliation{University of Tsukuba, Tsukuba, Ibaraki 305, Japan}
\author{A.~Taffard}
\affiliation{University of Illinois, Urbana, Illinois 61801}
\author{R.~Takashima}
\affiliation{Okayama University, Okayama 700-8530, Japan}
\author{Y.~Takeuchi}
\affiliation{University of Tsukuba, Tsukuba, Ibaraki 305, Japan}
\author{K.~Takikawa}
\affiliation{University of Tsukuba, Tsukuba, Ibaraki 305, Japan}
\author{M.~Tanaka}
\affiliation{Argonne National Laboratory, Argonne, Illinois 60439}
\author{R.~Tanaka}
\affiliation{Okayama University, Okayama 700-8530, Japan}
\author{N.~Tanimoto}
\affiliation{Okayama University, Okayama 700-8530, Japan}
\author{M.~Tecchio}
\affiliation{University of Michigan, Ann Arbor, Michigan 48109}
\author{P.K.~Teng}
\affiliation{Institute of Physics, Academia Sinica, Taipei, Taiwan 11529, Republic of China}
\author{K.~Terashi}
\affiliation{The Rockefeller University, New York, New York 10021}
\author{S.~Tether}
\affiliation{Massachusetts Institute of Technology, Cambridge, Massachusetts  02139}
\author{J.~Thom}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{A.S.~Thompson}
\affiliation{Glasgow University, Glasgow G12 8QQ, United Kingdom}
\author{E.~Thomson}
\affiliation{University of Pennsylvania, Philadelphia, Pennsylvania 19104}
\author{P.~Tipton}
\affiliation{University of Rochester, Rochester, New York 14627}
\author{V.~Tiwari}
\affiliation{Carnegie Mellon University, Pittsburgh, PA  15213}
\author{S.~Tkaczyk}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{D.~Toback}
\affiliation{Texas A\&M University, College Station, Texas 77843}
\author{S.~Tokar}
\affiliation{Joint Institute for Nuclear Research, RU-141980 Dubna, Russia}
\author{K.~Tollefson}
\affiliation{Michigan State University, East Lansing, Michigan  48824}
\author{T.~Tomura}
\affiliation{University of Tsukuba, Tsukuba, Ibaraki 305, Japan}
\author{D.~Tonelli}
\affiliation{Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy}
\author{M.~T\"{o}nnesmann}
\affiliation{Michigan State University, East Lansing, Michigan  48824}
\author{S.~Torre}
\affiliation{Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati, Italy}
\author{D.~Torretta}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{S.~Tourneur}
\affiliation{LPNHE, Universite Pierre et Marie Curie/IN2P3-CNRS, UMR7585, Paris, F-75252 France}
\author{W.~Trischuk}
\affiliation{Institute of Particle Physics: McGill University, Montr\'{e}al, Canada H3A~2T8; and University of Toronto, Toronto, Canada M5S~1A7}
\author{R.~Tsuchiya}
\affiliation{Waseda University, Tokyo 169, Japan}
\author{S.~Tsuno}
\affiliation{Okayama University, Okayama 700-8530, Japan}
\author{N.~Turini}
\affiliation{Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy}
\author{F.~Ukegawa}
\affiliation{University of Tsukuba, Tsukuba, Ibaraki 305, Japan}
\author{T.~Unverhau}
\affiliation{Glasgow University, Glasgow G12 8QQ, United Kingdom}
\author{S.~Uozumi}
\affiliation{University of Tsukuba, Tsukuba, Ibaraki 305, Japan}
\author{D.~Usynin}
\affiliation{University of Pennsylvania, Philadelphia, Pennsylvania 19104}
\author{A.~Vaiciulis}
\affiliation{University of Rochester, Rochester, New York 14627}
\author{S.~Vallecorsa}
\affiliation{University of Geneva, CH-1211 Geneva 4, Switzerland}
\author{A.~Varganov}
\affiliation{University of Michigan, Ann Arbor, Michigan 48109}
\author{E.~Vataga}
\affiliation{University of New Mexico, Albuquerque, New Mexico 87131}
\author{G.~Velev}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{G.~Veramendi}
\affiliation{University of Illinois, Urbana, Illinois 61801}
\author{V.~Veszpremi}
\affiliation{Purdue University, West Lafayette, Indiana 47907}
\author{R.~Vidal}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{I.~Vila}
\affiliation{Instituto de Fisica de Cantabria, CSIC-University of Cantabria, 39005 Santander, Spain}
\author{R.~Vilar}
\affiliation{Instituto de Fisica de Cantabria, CSIC-University of Cantabria, 39005 Santander, Spain}
\author{T.~Vine}
\affiliation{University College London, London WC1E 6BT, United Kingdom}
\author{I.~Vollrath}
\affiliation{Institute of Particle Physics: McGill University, Montr\'{e}al, Canada H3A~2T8; and University of Toronto, Toronto, Canada M5S~1A7}
\author{I.~Volobouev}
\affiliation{Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720}
\author{G.~Volpi}
\affiliation{Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy}
\author{F.~W\"urthwein}
\affiliation{University of California, San Diego, La Jolla, California  92093}
\author{P.~Wagner}
\affiliation{Texas A\&M University, College Station, Texas 77843}
\author{R.~G.~Wagner}
\affiliation{Argonne National Laboratory, Argonne, Illinois 60439}
\author{R.L.~Wagner}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{W.~Wagner}
\affiliation{Institut f\"{u}r Experimentelle Kernphysik, Universit\"{a}t Karlsruhe, 76128 Karlsruhe, Germany}
\author{R.~Wallny}
\affiliation{University of California, Los Angeles, Los Angeles, California  90024}
\author{T.~Walter}
\affiliation{Institut f\"{u}r Experimentelle Kernphysik, Universit\"{a}t Karlsruhe, 76128 Karlsruhe, Germany}
\author{Z.~Wan}
\affiliation{Rutgers University, Piscataway, New Jersey 08855}
\author{S.M.~Wang}
\affiliation{Institute of Physics, Academia Sinica, Taipei, Taiwan 11529, Republic of China}
\author{A.~Warburton}
\affiliation{Institute of Particle Physics: McGill University, Montr\'{e}al, Canada H3A~2T8; and University of Toronto, Toronto, Canada M5S~1A7}
\author{S.~Waschke}
\affiliation{Glasgow University, Glasgow G12 8QQ, United Kingdom}
\author{D.~Waters}
\affiliation{University College London, London WC1E 6BT, United Kingdom}
\author{W.C.~Wester~III}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{B.~Whitehouse}
\affiliation{Tufts University, Medford, Massachusetts 02155}
\author{D.~Whiteson}
\affiliation{University of Pennsylvania, Philadelphia, Pennsylvania 19104}
\author{A.B.~Wicklund}
\affiliation{Argonne National Laboratory, Argonne, Illinois 60439}
\author{E.~Wicklund}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{G.~Williams}
\affiliation{Institute of Particle Physics: McGill University, Montr\'{e}al, Canada H3A~2T8; and University of Toronto, Toronto, Canada M5S~1A7}
\author{H.H.~Williams}
\affiliation{University of Pennsylvania, Philadelphia, Pennsylvania 19104}
\author{P.~Wilson}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{B.L.~Winer}
\affiliation{The Ohio State University, Columbus, Ohio  43210}
\author{P.~Wittich}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{S.~Wolbers}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{C.~Wolfe}
\affiliation{Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637}
\author{T.~Wright}
\affiliation{University of Michigan, Ann Arbor, Michigan 48109}
\author{X.~Wu}
\affiliation{University of Geneva, CH-1211 Geneva 4, Switzerland}
\author{S.M.~Wynne}
\affiliation{University of Liverpool, Liverpool L69 7ZE, United Kingdom}
\author{A.~Yagil}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{K.~Yamamoto}
\affiliation{Osaka City University, Osaka 588, Japan}
\author{J.~Yamaoka}
\affiliation{Rutgers University, Piscataway, New Jersey 08855}
\author{T.~Yamashita}
\affiliation{Okayama University, Okayama 700-8530, Japan}
\author{C.~Yang}
\affiliation{Yale University, New Haven, Connecticut 06520}
\author{U.K.~Yang}
\affiliation{Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637}
\author{Y.C.~Yang}
\affiliation{Center for High Energy Physics: Kyungpook National University, Taegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; and SungKyunKwan University, Suwon 440-746, Korea}
\author{W.M.~Yao}
\affiliation{Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720}
\author{G.P.~Yeh}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{J.~Yoh}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{K.~Yorita}
\affiliation{Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637}
\author{T.~Yoshida}
\affiliation{Osaka City University, Osaka 588, Japan}
\author{G.B.~Yu}
\affiliation{University of Rochester, Rochester, New York 14627}
\author{I.~Yu}
\affiliation{Center for High Energy Physics: Kyungpook National University, Taegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; and SungKyunKwan University, Suwon 440-746, Korea}
\author{S.S.~Yu}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{J.C.~Yun}
\affiliation{Fermi National Accelerator Laboratory, Batavia, Illinois 60510}
\author{L.~Zanello}
\affiliation{Istituto Nazionale di Fisica Nucleare, Sezione di Roma 1, University of Rome ``La Sapienza," I-00185 Roma, Italy}
\author{A.~Zanetti}
\affiliation{Istituto Nazionale di Fisica Nucleare, University of Trieste/\ Udine, Italy}
\author{I.~Zaw}
\affiliation{Harvard University, Cambridge, Massachusetts 02138}
\author{F.~Zetti}
\affiliation{Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy}
\author{X.~Zhang}
\affiliation{University of Illinois, Urbana, Illinois 61801}
\author{J.~Zhou}
\affiliation{Rutgers University, Piscataway, New Jersey 08855}
\author{S.~Zucchelli}
\affiliation{Istituto Nazionale di Fisica Nucleare, University of Bologna, I-40127 Bologna, Italy}
\collaboration{CDF Collaboration}
\noaffiliation

prl_final.tex
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%% draft v1.0 Dec. 16, 2003                                                  %%
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\def\simge{\mathrel{%
   \rlap{\raise 0.511ex \hbox{$>$}}{\lower 0.511ex \hbox{$\sim$}}}}
\def\simle{\mathrel{
   \rlap{\raise 0.511ex \hbox{$<$}}{\lower 0.511ex \hbox{$\sim$}}}}
\def\lessim{\mathrel {\vcenter {\baselineskip 0pt \kern 0pt
\hbox{$<$} \kern 0pt \hbox{$\sim$} }}}
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\def\qqgG{\mbox{$q\overline{q} \rightarrow gG$}}
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\def\gggG{\mbox{$gg \rightarrow gG$}}
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\def\GeVc{GeV$\!/c$}
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\begin{document}
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%

%comment for PRL
%\vspace*{1.5cm}
%\vspace*{1.2cm}

%uncomment for PRL
\title{Search for Large Extra Dimensions in the Production
of Jets and Missing Transverse Energy in $p\bar{p}$ Collisions at
$\sqrt{s}$ = 1.96 TeV}
%\author{The CDF Collaboration}

%comment for PRL
%\begin{center}
%\begin{Large}
%Search for Large Extra Dimensions in the Production
%of Jets and Missing Transverse Energy in $p\bar{p}$ Collisions at
%$\sqrt{s}$ = 1.96 TeV
%\end{Large}
%\end{center}

%\title{
%\begin{flushright}
% FERMILAB-PUB-??/???-E \\
%{
%\small
%CDF/PUB/... \\
%PRL Draft V-999.0 \\
%\today
% \\
% Version 1.50 \\
%}
%\end{flushright}
%
%Search for Extra Dimensions in Run~II Jets $+$ Missing $E_{T}$ Sample
%}
%\author{
\input{January_2006_Authors.tex}
%
%  Author list to be submitted
%
%The CDF Collaboration
%}
%
%  Now the abstract...
%

\begin{abstract}
We present the results of a search for new physics in the 
jets plus missing transverse energy data sample collected 
from 368~pb$^{-1}$ of \ppb~ collisions at $\sqrt{\mbox{s}} 
=$1.96~TeV recorded by the Collider Detector at Fermilab.
We compare the number of events observed in the data with 
a data-based estimate of the \sm\ backgrounds 
contributing to this signature.  We observe no significant 
excess of events, and we interpret this null result in terms 
of lower limits on the fundamental Planck scale for a large 
extra dimensions scenario.
\end{abstract}

\pacs{14.80.-j, 04.50.+h, 13.85.Rm}
%uncomment for PRL
\maketitle

%\newpage
%% text body

One of the simplest new physics signatures that can be explored
at a hadron collider consists of a very energetic jet and large missing 
transverse energy ($\met$).  The Tevatron offers a unique opportunity to
explore energy regimes that could yield new physics that have
not been accessible at previous colliders.  We take advantage of
this opportunity by performing a signature-based, high energy 
monojet search.  While a wide range of exotic 
physics both known and not yet imagined could yield such a signature,
the most exciting recent scenario involves Large Extra Dimensions 
(LED)~\cite{grw}. LED are an essential ingredient of proposed 
solutions to the most fundamental problems of physics including 
the hierarchy problem~\cite{add} and the observed value of the dark 
energy ~\cite{cliff}.

%Events with large missing transverse energy  ($\met$) and 
%energetic jets are potential signatures of dark matter and 
%dark energy models~\cite{cliff}. 

%In the latter case, where the dark energy is a cosmological 
%constant~\cite{weinberg}, 

In LED scenarios,  gravitons or their superpartners~\cite{cliff,hugo} 
are responsible for the observed $\met$. 
%Such dark energy scenarios predict that gravity propagates 
%in a ($4+n$)-dimensional space-time, while the \sm\ (SM) 
%fields are confined to 4 dimensions.  
In the simplest $2\rightarrow 2$ tree-level processes possible at a hadron 
collider experiment, any of the gravitational states (we denote all possible 
states with spins from 0 to 2 by $G$) can be directly produced in 
processes such as $\qqgG$, $\qgqG$, and $\gggG$, leaving the final 
state quark ($q$) or gluon ($g$) to produce a single jet~\cite{grw}. 

%The single gravitational state thus produced will escape undetected 
%into the bulk of extra dimensions, producing the characteristic 
%signal of a single jet plus $\met$.

%The gravitational states will escape undetected in the bulk of 
%extra dimensions leaving a large amount of $\met$ in the detector. 
%This results in a single jet plus $\met$ signature.  In this Letter 
%we report a search for an event excess in a ``monojet'' data sample 
%made up of events with a single energetic jet and large $\met$.
%Given the very simple signal topology, it is impossible to 
%reconstruct angular variables or to measure forward-backward 
%asymmetries because there are no detected objects that recoil 
%against the reconstructed jet.  Should we find evidence of a signal, 
%it would thus be very difficult to measure the values of the model 
%parameters.   Nevertheless,
 
% In this context, 
%Graviton emission is predicted for the low energy regime 
%($\sim$ TeV) provided the $4+n$ dimensional Planck scale 
%($M_D$) is within reach of the Tevatron~\cite{grw,add}.  
Graviton emission is within reach of the Tevatron provided 
that the ($4+n$)-dimensional Planck scale ($M_D$) is around
1~TeV~\cite{grw,add}.  This can be the case if the radii $R$ 
of the $n$ compactified extra dimensions are sufficiently 
large.  Assuming $n$ extra dimensions of the same size, the 
relationship between the 4-dimensional effective Planck scale 
$M_{Pl} \sim 10^{19}$ GeV and the fundamental Planck scale 
$M_D$ is given by the generalized Gauss theorem~\cite{add}:

\begin{equation}
M_{Pl}^2 = 8 \pi  R^n M^{2+n}_{D}.  
\label{gauss}
\end{equation}
%Viable inflating cosmology models predicting a dark energy 
%density consistent with the astrophysical measurements can 
%require extradimensions with radii of this magnitude
%Cosmological models can account for the observed dark energy
%density by incorporating extra dimensions 
%sufficiently large to give values of order 1 TeV
%large enough to lead via Eq.~1 to TeV order values 
%for $M_D$~\cite{cliff},
%Hence, in this context, hadron colliders are sensitive 
%to the presence of large extra dimensions.  
%and hence to observable graviton emission effects 
%at hadron colliders.  
%in high energy collisions.
In the absence of a significant excess of events 
relative to the background expectations, lower limits can be 
set on $M_D$, which is a fundamental parameter common to all 
LED models.

Monojet searches performed in Run~I~\cite{Run1jetmet,D0Run1} at the 
Tevatron were consistent with \sm\ (SM) expectations.  In this Letter 
we present a new search using 368 pb$^{-1}$ of data, recorded 
by the Collider Detector at Fermilab (CDF) in Run~II of the 
Tevatron.   The sensitivity of this analysis to new physics in general and
to LED scenarios in particular, is significantly 
improved by the increase in center of mass energy for Run~II 
$\ppb$ collisions (1.80~TeV to 1.96~TeV), an improved CDF 
detector, and a factor of four increase in the integrated 
luminosity over the data sample used in Run~I.

A complete description of the CDF~II detector is given in 
Ref.~\cite{tdr,svx}.  The important components used in the 
reconstruction of the events for this analysis include a 
tracking system consisting of a silicon-strip vertex detector 
surrounded by an open-cell drift chamber.  The tracking system 
is situated within a $1.4$~T solenoidal magnetic field to allow 
for the measurement of charged particle momenta transverse to 
the beamline ($p_{T}$). Outside the magnet, scintillator-based 
electromagnetic and hadronic calorimeter modules are arranged 
in projective tower geometries to reconstruct the energy and 
direction of the particle jets.   
%Electromagnetic shower maximum detectors are embedded 6 radiation 
%lengths inside the EM calorimeter modules to make higher-precision 
%position measurements of electromagnetic showers and match these 
%showers with electron track candidates. 
The outermost detection system consists of planes of multi-layered 
drift chambers for detecting muons.  

We select events in the trigger system based on the presence of 
a jet with transverse energy $E_T >$100~GeV and further require 
offline that the highest $E_T$ jet in the event (the leading jet) 
has $E_T >$150~GeV.  With an offline threshold of 150~GeV, the jet 
trigger is $>$~99~$\!\%$ efficient for the events in our sample.  
Jets are reconstructed using a fixed cone algorithm with cone size 
$\Delta\mathcal{R}\equiv\sqrt{(\Delta\eta)^2 + (\Delta\phi)^2} 
= 0.7$~\cite{coordinates} over the full pseudorapidity coverage 
of the calorimeters ($|\eta| <$~3.6).  The jet $E_{T}$ are 
corrected in order to account for the effects of fragmentation, 
calorimeter non-uniformities, and energy from the rest of the 
event~\cite{jetcor}.  To increase the acceptance for events 
containing a second jet originating from quark or gluon radiation, 
we accept events that contain a second jet with $E_{T} <$60~GeV.  
However, we reject events that contain three or more reconstructed 
jets with $E_{T} >$20~GeV because these events have a much lower 
signal-to-background ratio than one-jet and two-jet events.  Since 
the \met~\cite{metdef} 
for most backgrounds is typically much lower than that 
of the signal, we require $\met >$120~GeV.  This value is set 
lower than the jet $E_T$ threshold of 150~GeV to keep the signal 
efficiency high given the $\met$ resolution.

To further reduce backgrounds from multi-jet events in which one 
or more of the jets are badly mis-measured, we require that the 
azimuth $\phi$ of the observed $\met$ is separated by more than 
0.3 radians from the $\phi$ of any second jet.  

To eliminate non-collision background events originating from 
beam halo, cosmic rays, and detector noise, we require that the 
leading jet is central ($|\eta| < 1.0$) and contained within the 
instrumented parts of the calorimeter.  Since a jet with $|\eta| 
< 1.0$ is within the fiducial tracking volume, we can search for 
tracks pointing towards the region of the calorimeter in which 
the jet is found.  For all jets within the fiducial tracking 
volume, we require at least two associated tracks whose $p_{T}$ 
add up to at least 10\% of the jet $E_{T}$.  
%For the leading $E_{T}$ jet, we restrict the sum $p_{T}$ to 
%tracks which point back to the reconstructed event vertex and 
%relax the requirement on the ratio of the track $\Sigma p_{T}$ 
%over jet $E_{T}$ to 5\% while requiring that at least two 
%tracks contribute to the $p_{T}$ sum.  
We also require an event vertex reconstructed from six or more 
tracks that is within 60~cm of the detector center in $z$ (the 
coordinate parallel to the colliding beams).  For the leading,
central jet we also require that the associated tracks used 
in the $p_{T}$ sum described above are consistent 
with having orginated from this event vertex.  To eliminate 
%background from particles travelling parallel to the beam 
%that interact and look like jets in the hadronic calorimeter, 
background from muons produced upstream of the detector 
that interact and look like jets in the hadronic calorimeter,
we additionally require that for each event the total 
electromagnetic energy of all jets with $E_{T} >$20~GeV is 
at least 10\% of the total $E_{T}$. 

The resulting candidate sample contains a significant number 
of events originating from SM processes which can    
produce large $\met$ in the detector.  The $\met$ associated 
with these processes can originate from either neutrinos in 
the final state (real $\met$) or other particles that pass   
into uninstrumented regions of the detector (fake $\met$).  
The largest SM background is $Z$+jets where the $Z$ boson 
subsequently decays into neutrinos ($Z\rightarrow\nu\ol{\nu}$). 
This background has the same event topology as our signal and 
is thus irreducible.  The next most significant SM background 
comes from $\Wlnp$+jets production ($\ell = e$, $\mu$, or 
$\tau$) where the lepton is unidentified. 
%This can happen when the lepton falls outside the fiducial 
%coverage of the tracking detector or falls in an uninstrumented 
%region of the calorimeter.
%which leads to the production of fake $\met$ within the event.  
%We reduce the $\Wln$+jets background by rejecting events which 
%contain isolated tracks with $p_{T} >$~10~GeV/$c$ or jets that 
%have $E_{T} >$~20~GeV and an electromagnetic energy fraction 
%greater than 90~$\!\%$.
The contribution of this background is suppressed by rejecting 
events that contain an isolated track with $p_{T} >$~10~GeV/$c$ 
(a potential muon) or a jet with $E_{T} >$~20~GeV for which 
the electromagnetic energy fraction is above 90\% (a potential 
electron).  Track isolation is defined using the measured 
energy in the calorimeter within a $\Delta\mathcal{R} <$~0.4 
cone around the reconstructed track, after subtracting the 
measured energy in those calorimeter towers intersected by the 
track.  Tracks are defined to be isolated  if this energy is 
less than 10~$\!\%$ of the measured track $p_{T}$.  We refer 
to the $W/Z$+jets backgrounds collectively as electroweak 
backgrounds.  

The number of electroweak background events in the candidate 
sample is estimated by measuring cross sections for $\Zllp$+jets 
and $\Wlnp$+jets ($\ell = e$ or $\mu$) production from independent 
data samples collected using high $E_{T}$ single electron and 
high $p_{T}$ single muon triggers.  
%The single electron and muon samples correspond to integrated 
%luminosities of 368~pb$^{-1}$ and 356~pb$^{-1}$, respectively.
We select events that contain a muon with $\pt >$20~GeV/$c$ or 
an electron with $\et >$25~GeV using standard lepton selection 
criteria~\cite{wzprl} to constuct a low-background sample of   
lepton candidates.  Starting from this sample, we select $\Wln$ 
candidates by requiring $\met >$25~GeV ($\met >$20~GeV for muon 
events) and $\Zll$ candidates by requiring a second lepton that
satifies a looser set of selection criteria~\cite{wzprl}.  The 
cosmic ray background in both candidate samples is reduced 
by rejecting events in which tracks passing through opposite 
hemispheres of the detector can be reconstructed along a common 
trajectory. 

Using the measured $\Zllp$+jets cross sections and 
the difference in $Z$ branching fractions for charged 
leptons and neutrinos, we estimate the expected number 
of $\Znnp$+jets events in our candidate sample.  A 
second, independent estimate of this background is 
obtained from the measured $\Wlnp$+jets cross sections.  
In this case we first divide the measured cross section 
by a theoretical prediction for $R_{(W/Z)}$, the ratio 
of the $W$+jets and $Z$+jets production cross sections 
and then correct the extrapolated $\Zllp$+jets cross 
section for the $Z$ branching fraction to neutrinos.  
A more precise prediction for the expected background 
is obtained by combining the estimates.

%---------------------------------------------------------
\begin{figure}[tb]
\begin{center}
%\includegraphics[width=5.0in]{wz_xsec.eps}
%\includegraphics[width=5.0in]{wz_xsec_prl.eps}
\includegraphics[width=3.2in]{wz_xsec_prl_1.eps} % width for PRL
\caption{$W$ and $Z$ Boson cross sections as a function of 
leading jet $E_T$.}
\end{center}
\label{WZxsecFig}
\end{figure}
%---------------------------------------------------------

%In order to cross check event selection, 
As a consistency check of the event selection,
we measure inclusive 
cross sections for $W/Z$ production and compare the results 
with published Run~II measurements~\cite{wzprl}.  In addition,
we measure $W/Z$+jet production cross sections where the jet 
criteria are identical to those used in the final selection of 
our jet plus $\met$ candidate sample, except that
we vary the leading jet $E_T$ cut for these measurements,
using thresholds of 60, 90, 120, and 150~GeV. 
%and apply the $\met >$120~GeV cut only in the case of the 
%highest threshold.  
The larger statistics available in the samples obtained using 
the lower jet $E_{T}$ thresholds allow for statistically 
significant comparisons between independent measurements in 
the electron and muon channels.  The observed agreement 
provides further validation of the cross section measurements 
made for the 150 GeV leading jet threshold that are used to 
estimate the electroweak backgrounds in our final candidate 
sample.

The acceptance values used in the $W/Z$+jets cross section 
measurements are obtained from simulated \pyt~\cite{pythia} 
event samples using a full detector simulation based on 
\geant3~\cite{geant} and corrected to account for measured 
differences in lepton selection criteria observed in data 
and simulation.  The measured cross sections are shown in 
Fig.~1.  We combine cross section measurements from the 
electron and muon samples using the default cut of 150~GeV 
on the $E_{T}$ of the leading jet and obtain
$\sigma(\Wlnp+{\rm{jets}})~=~0.46~\pm~0.05~\rm{pb}$ and
$\sigma(\Zllp+{\rm{jets}})~=~0.08~\pm~0.02~\rm{pb}.$  
%~\ref{WZxsecFig} .

%Based on these measured cross sections, the cross 
%section for the $\Znnp$+jets background contribution 
%to the ``monojet'' candidate sample is obtained 
%using $\sigma(\Znn)~=~6\times\sigma(\Zll)$ and 
%$\sigma(\Znn)~=~6\times\sigma(\Wln)\times R_{(W/Z)}$.
A next-to-leading order calculation based on the {\sc mcfm} 
generator~\cite{mcfm} was used to determine the value 
of $R_{(W/Z)}$.  
%Figure~\ref{Rplot} shows the calculated value of 
%$R_{(W/Z)}$ as a function of $\ptmin$ for different 
%choices of PDFs and the renormalization and 
%factorization scales.  
At $\ptmin$=150 GeV, the calculated value of 
$R_{(W/Z)}$ is 8.15~$\pm$~0.40.  Based on the 
combined $\Zllp$+jets and $\Wlnp$+jets cross 
section measurements, we estimate 177~$\pm$~44 and 
125~$\pm$~15 background events from $\Znnp$+jets 
in our jet plus $\met$ candidate sample.  The two 
independent results are combined to obtain a final 
estimate of 130~$\pm$~14 events.  Estimates for the 
contributions of the other electroweak backgrounds 
to the candidate sample are also obtained from the 
measured $W/Z$+jets cross sections.  We extract, 
for example, the number of $\Wlnp$+jets background 
events from the measured $\Wlnp$+jets cross section 
based on the percentage of simulated $\Wlnp$+jets
events which pass our selection criteria.
Since the same 
measured cross sections are used to estimate the 
contributions of each electroweak background shown 
in Table~\ref{all_bgrs}, the uncertainties on these 
background predictions are fully correlated. 

%-------------------------------------------------------------
%\begin{figure}[tb]
%  \centerline{
%  \psfig{file=qcd_back1_v4.eps,width=1.0\linewidth}}
%  \psfig{file=qcd_back1_v4.eps,width=16cm}}
%  \caption{$E_T$ of the second jet in dijet events, with 
%           the extrapolation for the lost jets superimposed.}
%  \label{QCDJet2Et}
%\end{figure}
%-------------------------------------------------------------

As described previously, events originating from 
QCD multi-jet production processes can enter our 
sample when the mis-measurement of one or more jets 
creates large $\met$ in the detector.  The dominant 
topology is two-jet events where the second jet is 
not found by the jet finding algorithm.  To estimate 
the background contribution of such events, we study 
dijet events in data for which the observed $\met$ 
points in the direction of the less energetic jet.
We perform a linear extrapolation of the $E_{T}$
distribution for this less energetic jet into the 
region where the $E_T$ drops below our threshold 
(20~GeV) for defining jets.  Monte Carlo studies 
indicate that an additional relative contribution 
of approximately 15\% from three-jet events should 
be added to the number extracted from this method, 
resulting in an estimate of $15 \pm 10$ background
events from QCD multi-jet production in our final 
candidate sample.

%To obtain further confidence in this result, we compare 
%distributions of the difference in $\phi$ between the 
%missing $E_{T}$ and less energetic jet for dijet events 
%in the data and Monte Carlo samples (shown in 
%Fig.~\ref{QCDdphi}) and observe good agreement.  
%%--------------------------------------------------------
%\begin{figure}[tb]
%  \centerline{
%  \psfig{file=dphi90_v7.eps,width=16cm}}
%%  \psfig{file=eps/dphi90.eps,width=16cm}}
%  \caption{Comparison of $\Delta\phi(\rm{Jet}-\met)$ in 
%           data and MC.  To increase the statistics used 
%           in the comparison, the cut on $\met$ has been 
%           lowered to 90 GeV.}
%  \label{QCDdphi}
%\end{figure}
%%%------------------------------------------------------

Using timing information from the hadronic calorimeter 
we estimate the non-collision background, from sources 
such as cosmic rays, to be 4~$\pm$~4 events.  

%----------------------------------------------------------
\begin{figure}[tb]
\begin{center}
%\includegraphics[width=5.0in]{blessplot1.eps}
\includegraphics[width=3.2in]{blessplot1_2.eps} % width for PRL
%\includegraphics[width=3.in]{LimitGraph.eps}
%\includegraphics[width=5.0in]{blessplot2.eps}
\caption{Comparison of the event $\met$ distribution 
         for the 263 events in our candidate sample 
         with the predicted SM distribution.}
\end{center}
\label{METdist}
\end{figure}
%%---------------------------------------------------------

A summary of estimated background contributions to 
the candidate sample is shown in Table~\ref{all_bgrs}.  
We predict a total background of 265~$\pm$~30 events,
observe 263 events in the data, and therefore 
conclude that no excess is present in the data. 
Figure~2 shows a comparison of the $\met$ distribution 
for the 263 events in our candidate sample with the 
expected distribution from the SM backgrounds.  We 
note that shape of the distribution for signal events would 
not look significantly different than that shown here 
for the SM processes.
  
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{table}
\begin{center}
\begin{tabular}{|l|c|} \hline
{Background}     & {Events}       \\\hline\hline
{$\Znn$}         & {130 $\pm$ 14} \\\hline
{$\Wtn$}         & {60  $\pm$ 7}  \\\hline
{$\Wmn$}         & {36  $\pm$ 4}  \\\hline
{$\Wen$}         & {17  $\pm$ 2}  \\\hline
{$\Zll$}         & { 3  $\pm$ 1}  \\\hline
{QCD multi-jet}  & {15  $\pm$ 10} \\\hline\hline
{Non-collision}  & {4  $\pm$ 4}   \\\hline\hline
{Total expected} & {265 $\pm$ 30} \\\hline
{Data observed}  & {263}          \\\hline
\end{tabular}
\end{center}
\caption{Summary of estimated background 
         contributions and number of events 
         observed for the candidate sample.}
\label{all_bgrs}
\end{table}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%---------------------------------------------------
%\begin{figure}[tb]
%  \centerline{
%  \psfig{file=blessplot1.eps,width=1.0\linewidth}
%  \psfig{file=blessplot2.eps,width=1.0\linewidth}
%}
%  \psfig{file=blessplot1.eps,width=16cm}}
%  \caption{Comparison of the event missing $E_{T}$ 
%           (top) and leading jet $E_T$ (bottom) 
%           distributions for the the 263 events in 
%           our candidate sample with the predicted 
%           SM distribution.}
%  \label{METdist}
%\end{figure}
%%-------------------------------------------------

%----------------------------------------------------------
\begin{figure}[tb]
\begin{center}
%\includegraphics[width=3.25in]{blessplot1.eps}
%\includegraphics[width=5.0in]{LimitGraph.eps}
\includegraphics[width=3.2in]{LimitGraph_3.eps} % width for PRL
%\includegraphics[width=5.0in]{blessplot2.eps}
\caption{Comparison of 95\% CL lower limits on $M_D$ 
         based on the Run~II CDF and Run~I D\O\ 
         results with LEP combined results.}
\end{center}
\label{LimitPlot}
\end{figure}
%%---------------------------------------------------------

We set lower limits on the ($4+n$)-dimensional Planck scale 
using these results. We use \pyt\ in conjuction with the 
full detector simulation 
to generate samples of simulated graviton production, 
based on leading-order production 
cross sections calculated in Ref.~\cite{grw}.  We simulate 
the signal processes for numbers of extra dimensions   
between 2 and 6 and for a set of different $\md$ values.
The cumulative signal acceptance for our selection criteria 
ranges from 9.9 $\pm$ 1.3~$\!\%$ to 12.6 $\pm$ 1.7~$\!\%$ 
as a function of $n$. The acceptances are found to have no 
significant dependence on $\md$.
%The estimate of the relative uncertainty on this acceptance 
%is 13.2~$\!\%$,
Contributions to the uncertainty on the acceptance include 
the choice of parton distribution functions (5.9\% relative 
uncertainty), possible differences in the jet energy 
scale~\cite{jetcor} between data and simulation (8\%),
the models for initial and final state radiation in the
Monte Carlo simulation (5.2\%), and the uncertainty on the integrated 
luminosity of the sample (6\%).  We scale the generated 
cross sections by a K-factor (the expected ratio of cross 
sections as calculated at next-to leading order and leading 
order) of 1.3~\cite{kfact}.

We obtain the upper limit on the number of signal events
in our candidate sample using a Bayesian approach with 
a flat prior for the number of signal events and gamma 
distributions for the priors for both the acceptance 
and the number of background events~\cite{statref}.
%Based on the observed number of events, our estimate 
%of the SM background, and the measured signal 
%acceptances (in conjunction with their associated 
%uncertainties), we set limits on the number of 
%potential signal events in our candidate sample.  
Based on 263 observed events, a SM expectation of 
265~$\pm$~30 events, and a combined uncertainty of 
13.2~$\!\%$ on the signal acceptance, we obtain an 
upper limit of 67 signal events at 95\% C.L.,
corresponding to a cross-section times acceptance 
of (67/368 $pb^{-1}$)=0.18~pb.  We set limits on the value 
of $\md$ for different values of $n$ based on the 
maximum possible number of observed signal events.  
The lower limits on $\md$ for $n =$~2--6 are shown 
in Table~II for $K =$~1.3.  
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{table}
\begin{center}
\begin{tabular}{|l|c|c|}\hline
      {n} & {$M_D$(TeV)} &{$R$(mm)}               \\ \hline\hline
      2  & $>~1.18$     & $<~3.5 \times 10^{-1}$  \\
      3  & $>~0.99$     & $<~3.6 \times 10^{-6}$  \\
      4  & $>~0.91$     & $<~1.1 \times 10^{-8}$  \\
      5  & $>~0.86$     & $<~3.5 \times 10^{-10}$ \\
      6  & $>~0.83$     & $<~3.4 \times 10^{-11}$ \\ \hline
\end{tabular}
\end{center} 
\caption{95\% C.L. limits on $\md$ for $n$=2--6, 
         with the corresponding limit on $R$, 
         assuming toroidal compactification as 
         described in~\cite{grw}.}
\label{lim_mdr}
\end{table}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Assuming compactification on a torus, these limits 
on $\md$ can easily be related to limits on the 
radius of the extra dimensions by Eq.~(\ref{gauss}).

%\begin{equation} 
%R^n = \frac{1}{8\pi}\left(\frac{M_{PL}}
%{M_D}\right)^2\frac{1}{M_D^n}.
%\end{equation}
%The corresponding upper limits on $R$ as a function 
%of $n$ are also shown in Table~\ref{lim_mdr}.

A comparison of the limits on $M_D$ from D\O\ 
and CDF with LEP combined results~\cite{lepresults} is 
shown graphically in Fig.~3.  This measurement places 
the most stringent limits from the Tevatron and in the 
case of $n =$~5 and $n =$~6 the world's best limits on 
$M_D$.  For the case of two extra dimensions, the upper 
limit of 0.35~mm on the size of the extra dimensions 
based on the lower limit for $M_D$ (1.18~TeV) can be 
compared to the limit of 0.13~mm from a direct probe 
of gravity at short distances~\cite{EotWash}.  Such 
experiments have no sensitivity for higher values of 
$n$ but have the best limits for $n$=2.

% ---------------------------------------------------
%\begin{figure}[tb]
%  \centerline{
%  \psfig{file=LimitGraph.eps,width=1.0\linewidth}}
%  \psfig{file=LimitGraph.eps,width=16cm}}
%  \caption{Comparison of lower limits on $M_D$ based 
%           on the Run~II CDF and Run~I D$\emptyset$ 
%           results with the combined LEP averages.}
%  \label{limitcomp}
%\end{figure}
% ---------------------------------------------------

% ---------------------------------------------------
%\begin{figure}[tb]
%\begin{center}
%\includegraphics[width=5.0in]{LimitGraph2.eps}
%\caption{Comparison of limits on $M_D$ based on the 
%         Run~II CDF and Run~I D$\emptyset$ results 
%         with the combined LEP averages.}
%\end{center}  
%\label{limitcomp}
%\end{figure}
% ---------------------------------------------------

To summarize, we have performed a search for direct 
graviton production in a sample of events containing 
one high $E_{T}$ jet and large $\met$ obtained from 
368~pb$^{-1}$ of CDF Run~II data.  The number of 
events observed in the data is consistent with SM
expectations, and hence we set lower limits at the 
95\% C.L. on the fundamental Planck scale $\md$
for numbers of extra dimensions between 2 and 6. 

%\section*{Acknowledgements}
We thank the Fermilab staff and the technical staffs 
of the participating institutions for their vital contributions. 
This work was supported by the U.S. Department of Energy and 
National Science Foundation; the Italian Istituto Nazionale di 
Fisica Nucleare; the Ministry of Education, Culture, Sports, 
Science and Technology of Japan; the Natural Sciences and 
Engineering Research Council of Canada; the National Science 
Council of the Republic of China; the Swiss National Science 
Foundation; the A.P. Sloan Foundation; the Bundesministerium 
f\"ur Bildung und Forschung, Germany; the Korean Science and 
Engineering Foundation and the Korean Research Foundation; the 
Particle Physics and Astronomy Research Council and the Royal 
Society, UK; the Russian Foundation for Basic Research; the 
Comisi\'on Interministerial de Ciencia y Tecnolog\'{\i}a, Spain; 
in part by the European Community's Human Potential Programme 
under contract HPRN-CT-2002-00292; and the Academy of Finland. 

%\begin{references}
\begin{thebibliography}{20}

\bibitem{grw} G.F. Giudice, R. Rattazzi, J.D. Wells,
Nucl. Phys. B {\bf 544}, 3 (1999). J.L. Hewett, Phys. Rev. Lett.
{\bf 82}, 4765 (1999). T Han, J.D. Lykken and R.-J. Zhang, Phys. 
Rev. {\bf D59} 105006 (1999). E.A. Mirabelli, M. Perelstein and
M.E. Peskin, Phys. Rev. Lett. {\bf 82} 2236 (1999)

\bibitem{add} N. Arkani-Hamed, S. Dimopoulos, and G. Dvali,
Phys. Lett. B {\bf 429}, 263 (1998); Phys. Rev. D {\bf 59},
086004 (1999). 

\bibitem{cliff} C.P. Burgess, AIP Conf. Proc. {\bf 743}, 
417 (2005); C.P. Burgess, Ann. Phys. {\bf 313},
283 (2004). 

\bibitem{hugo} G.~Azuelos, P.-H.~Beauchemin and C.P.~Burgess, 
J. Phys. G: Nucl. Part. {\bf 31}, 1 (2005); 
D.~Atwood {\it et al.},
%C.P.~Burgess, E.~Filotas, F.~Leblond, D.~London and I.~Maksymyk, 
Phys. Rev. D {\bf 63}, 025007 (2001).

%\bibitem{astro}S. Hannestad and G. Raffelt, Phys. Rev. Lett. 
%{\bf 87} (2001) 051301; Phys. Rev. {\bf D67} (2003) 125008,
%Erratum-ibid. {\bf D69} (2004) 029901;
%S. Hannestad, Phys. Rev. {\bf D64} (2001) 023515.

%\bibitem{LEDastrobounds} V. Barger, T. Han, C. Kao, R.-J. 
%Zhang, Phys.\ Lett.\ {\bf B461} (1999) 34-42; J.A. Pons, 
%D.R. Phillips and S. Reddy, Phys.\ Lett.\ {\bf B509}
%(2001) 1-9.

%\bibitem{susy} J.F. Gunion and S. Mrenna, Phys. Rev. D62, 
%015002 (2000).

%\bibitem{techni} T. Handa, The CDF Collaboration, 
%{\it Technicolor Limits at the Tevatron}, CDF note 4936

%\bibitem{lepto} J.L. Hewett and T.G. Rizzo, {\it Much ado 
%about leptoquarks: A Comprehensive analysis}, Phys. Rev. D56, 
%5709 (1998); S. Hagopian, {\it Leptoquark summary form the 
%Tevatron}, A CDF and D$\emptyset$ Collaborations public note.

\bibitem{Run1jetmet} D. Acosta {\it et al.} (CDF 
Collaboration), Phys. Rev. Lett. {\bf 92}, 121802 (2004).

\bibitem{D0Run1} V.M. Abazov {\it et al.} (D\O\ 
Collaboration), Phys. Rev. Lett. {\bf 90}, 251802 (2003).

\bibitem{tdr} D. Acosta {\it et al.} (CDF Collaboration), 
Phys. Rev. D {\bf 71}, 032001, (2005).

\bibitem{svx} A. Sill {\it et al.}, Nucl. Instrum. Methods A 
{\bf 447}, 1 (2000); T. Affolder {\it et al.}, Nucl. Instrum. 
Methods A {\bf 526}, 249 (2004); L. Balka {\it et al.}, Nucl. 
Instrum. Methods A {\bf 267}, 272 (1988); G. Ascoli {\it et al.}, 
Nucl. Instrum. Methods A {\bf 268}, 33 (1988); T. Dorigo {\it
et al.}, Nucl. Instrum. Methods A {\bf 461}, 560 (2001).

%\bibitem{svx} A. Sill {\it et al.}, Nucl. Instrum. Meth. A 
%{\bf 447}, 1 (2000)

%\bibitem{cot} T. Affolder {\it et al.}, Nucl. Instrum. Meth. A 
%{\bf 526}, 249 (2004)

%\bibitem{calo} L. Balka {\it et al.}, Nucl. Instrum. Meth. A 
%{\bf 267}, 272 (1988)

%\bibitem{muon} G. Ascoli {\it et al.}, Nucl. Instrum. Meth. A 
%{\bf 268}, 33 (1988);\\

\bibitem{coordinates} We use a coordinate system where $\theta$\ 
is the polar angle to the proton beam, $\phi$\ is the azimuthal 
angle about this beam axis, and
%$\eta\equiv-\ln\tan(\theta/2)$.  
$\eta$ is the pseudorapidity defined as $-\ln\tan(\theta/2)$.  

\bibitem{jetcor} A.~Bhatti {\it et al.}, submitted to Nucl. 
Instrum. Methods A, arXiv:hep-ex/0510047 (2005).

\bibitem{metdef}
Missing transverse energy, \MEt, is defined as the magnitude of 
$-\sum_i E_T^i \hat{n}_i$, where $\hat{n}_i$\ is a unit vector 
in the azimuthal plane that points from the beamline to the $i$th 
calorimeter tower.

%\bibitem{cdf6298}F. Chlebana, G. Flanagan, A. Bhatti, 
%J Dittmann, J. Huston, G. Latino, M. Martinez-Perez, 
%R. Snihur,CDF Note 6298.

%\bibitem{cdf6089}H. Gerberich, A. Kotwal, C. Hays, {\it 
%Cosmic Ray Tagging using COT Hit Timing}, CDF Note 6089.

\bibitem{wzprl} D. Acosta {\it et al.} (CDF Collaboration),
Phys. Rev. Lett. {\bf 94}, 091803 (2005).

\bibitem{pythia} T.~Sj\"ostrand {\it et al.},
% P.~Ed\'en, C.~Friberg, L.~L\"onnblad, G.~Miu, S.~Mrenna, and E.~Norrbin, 
Comput. Phys. Commun. {\bf 135}, 238 (2001).

%\bibitem{pythia} T.~Sjostrand, L.~Lonnblad, S.~Mrenna, 
%TP-01-21, LU (2001), hep-ph/0108264.

\bibitem{geant} R.~Brun {\it et al.}, 
%R.~Hagelberg, M.~Hansroul, and J.C.~Lassalle, 
%GEANT: {\it Simulation Program for Particle
%Physics Experiments.  User Guide and Reference Manual},
CERN-DD-78-2-REV; S.~Agostinelli {\it et al.}, Nucl. Instr.
Methods A {\bf 506}, 250 (2003).

\bibitem{mcfm} John~Campbell and R.K.~Ellis, Phys. Rev. D 
{\bf 65}, 113007 (2002).

%\bibitem{mcfm} Monte Carlo for FeMtobarn processes 
%at Hadron Colliders.  J. Campbell and K. Ellis,  
%{\tt http://mcfm.fnal.gov/}. 

%\bibitem{mrenna} Private communication with Steven Mrenna.

\bibitem{kfact} P.~Mathews, V.~Ravindran, K.~Sridhar, 
W.L.~van~Neerven, Nucl. Phys. B {\bf 713}, 333 (2005);
P.~Mathews, V.~Ravindran, K.~Sridhar, 
J. High Energy Phys. {\bf 0510}, 031 (2005). 
%hep-ph/0506158.

\bibitem{statref} J.~Heinrich {\it et al.}, 
%C.~Blocker, J.~Conway, 
%L.~Demortler, L.~Lyons, G.~Punzi, and P.~Sinervo, 
arXiv:physics/0409129 (2004).

\bibitem{lepresults} S.~Ask, in Proceedings of 32nd 
International Conference on High Energy Physics (ICHEP 2004), 
Vol. {\bf 2}, 1289 (2005).
%{\it Search for extra dimensions at LEP},

%\bibitem{conwaylim}J.~Conway, CERN 2000-005, 247 (2000).

\bibitem{EotWash} C.~D.~Hoyle {\it et al.}, 
%D.~J.~Kapner, B.~R.~Heckel, 
%E.~G.~Adelberger, J.~H.~Gundlach, U.~Schmidt, H.~E.~Swanson,
Phys. Rev. D {\bf 70}, 042004 (2004).

%\end{references}
\end{thebibliography}


\end{document}








hep-ex0605101.extracted_bib
\begin{thebibliography}{20}

\bibitem{grw} G.F. Giudice, R. Rattazzi, J.D. Wells,
Nucl. Phys. B {\bf 544}, 3 (1999). J.L. Hewett, Phys. Rev. Lett.
{\bf 82}, 4765 (1999). T Han, J.D. Lykken and R.-J. Zhang, Phys. 
Rev. {\bf D59} 105006 (1999). E.A. Mirabelli, M. Perelstein and
M.E. Peskin, Phys. Rev. Lett. {\bf 82} 2236 (1999)

\bibitem{add} N. Arkani-Hamed, S. Dimopoulos, and G. Dvali,
Phys. Lett. B {\bf 429}, 263 (1998); Phys. Rev. D {\bf 59},
086004 (1999). 

\bibitem{cliff} C.P. Burgess, AIP Conf. Proc. {\bf 743}, 
417 (2005); C.P. Burgess, Ann. Phys. {\bf 313},
283 (2004). 

\bibitem{hugo} G.~Azuelos, P.-H.~Beauchemin and C.P.~Burgess, 
J. Phys. G: Nucl. Part. {\bf 31}, 1 (2005); 
D.~Atwood {\it et al.},
%C.P.~Burgess, E.~Filotas, F.~Leblond, D.~London and I.~Maksymyk, 
Phys. Rev. D {\bf 63}, 025007 (2001).

%\bibitem{astro}S. Hannestad and G. Raffelt, Phys. Rev. Lett. 
%{\bf 87} (2001) 051301; Phys. Rev. {\bf D67} (2003) 125008,
%Erratum-ibid. {\bf D69} (2004) 029901;
%S. Hannestad, Phys. Rev. {\bf D64} (2001) 023515.

%\bibitem{LEDastrobounds} V. Barger, T. Han, C. Kao, R.-J. 
%Zhang, Phys.\ Lett.\ {\bf B461} (1999) 34-42; J.A. Pons, 
%D.R. Phillips and S. Reddy, Phys.\ Lett.\ {\bf B509}
%(2001) 1-9.

%\bibitem{susy} J.F. Gunion and S. Mrenna, Phys. Rev. D62, 
%015002 (2000).

%\bibitem{techni} T. Handa, The CDF Collaboration, 
%{\it Technicolor Limits at the Tevatron}, CDF note 4936

%\bibitem{lepto} J.L. Hewett and T.G. Rizzo, {\it Much ado 
%about leptoquarks: A Comprehensive analysis}, Phys. Rev. D56, 
%5709 (1998); S. Hagopian, {\it Leptoquark summary form the 
%Tevatron}, A CDF and D$\emptyset$ Collaborations public note.

\bibitem{Run1jetmet} D. Acosta {\it et al.} (CDF 
Collaboration), Phys. Rev. Lett. {\bf 92}, 121802 (2004).

\bibitem{D0Run1} V.M. Abazov {\it et al.} (D\O\ 
Collaboration), Phys. Rev. Lett. {\bf 90}, 251802 (2003).

\bibitem{tdr} D. Acosta {\it et al.} (CDF Collaboration), 
Phys. Rev. D {\bf 71}, 032001, (2005).

\bibitem{svx} A. Sill {\it et al.}, Nucl. Instrum. Methods A 
{\bf 447}, 1 (2000); T. Affolder {\it et al.}, Nucl. Instrum. 
Methods A {\bf 526}, 249 (2004); L. Balka {\it et al.}, Nucl. 
Instrum. Methods A {\bf 267}, 272 (1988); G. Ascoli {\it et al.}, 
Nucl. Instrum. Methods A {\bf 268}, 33 (1988); T. Dorigo {\it
et al.}, Nucl. Instrum. Methods A {\bf 461}, 560 (2001).

%\bibitem{svx} A. Sill {\it et al.}, Nucl. Instrum. Meth. A 
%{\bf 447}, 1 (2000)

%\bibitem{cot} T. Affolder {\it et al.}, Nucl. Instrum. Meth. A 
%{\bf 526}, 249 (2004)

%\bibitem{calo} L. Balka {\it et al.}, Nucl. Instrum. Meth. A 
%{\bf 267}, 272 (1988)

%\bibitem{muon} G. Ascoli {\it et al.}, Nucl. Instrum. Meth. A 
%{\bf 268}, 33 (1988);\\

\bibitem{coordinates} We use a coordinate system where $\theta$\ 
is the polar angle to the proton beam, $\phi$\ is the azimuthal 
angle about this beam axis, and
%$\eta\equiv-\ln\tan(\theta/2)$.  
$\eta$ is the pseudorapidity defined as $-\ln\tan(\theta/2)$.  

\bibitem{jetcor} A.~Bhatti {\it et al.}, submitted to Nucl. 
Instrum. Methods A, arXiv:hep-ex/0510047 (2005).

\bibitem{metdef}
Missing transverse energy, \MEt, is defined as the magnitude of 
$-\sum_i E_T^i \hat{n}_i$, where $\hat{n}_i$\ is a unit vector 
in the azimuthal plane that points from the beamline to the $i$th 
calorimeter tower.

%\bibitem{cdf6298}F. Chlebana, G. Flanagan, A. Bhatti, 
%J Dittmann, J. Huston, G. Latino, M. Martinez-Perez, 
%R. Snihur,CDF Note 6298.

%\bibitem{cdf6089}H. Gerberich, A. Kotwal, C. Hays, {\it 
%Cosmic Ray Tagging using COT Hit Timing}, CDF Note 6089.

\bibitem{wzprl} D. Acosta {\it et al.} (CDF Collaboration),
Phys. Rev. Lett. {\bf 94}, 091803 (2005).

\bibitem{pythia} T.~Sj\"ostrand {\it et al.},
% P.~Ed\'en, C.~Friberg, L.~L\"onnblad, G.~Miu, S.~Mrenna, and E.~Norrbin, 
Comput. Phys. Commun. {\bf 135}, 238 (2001).

%\bibitem{pythia} T.~Sjostrand, L.~Lonnblad, S.~Mrenna, 
%TP-01-21, LU (2001), hep-ph/0108264.

\bibitem{geant} R.~Brun {\it et al.}, 
%R.~Hagelberg, M.~Hansroul, and J.C.~Lassalle, 
%GEANT: {\it Simulation Program for Particle
%Physics Experiments.  User Guide and Reference Manual},
CERN-DD-78-2-REV; S.~Agostinelli {\it et al.}, Nucl. Instr.
Methods A {\bf 506}, 250 (2003).

\bibitem{mcfm} John~Campbell and R.K.~Ellis, Phys. Rev. D 
{\bf 65}, 113007 (2002).

%\bibitem{mcfm} Monte Carlo for FeMtobarn processes 
%at Hadron Colliders.  J. Campbell and K. Ellis,  
%{\tt http://mcfm.fnal.gov/}. 

%\bibitem{mrenna} Private communication with Steven Mrenna.

\bibitem{kfact} P.~Mathews, V.~Ravindran, K.~Sridhar, 
W.L.~van~Neerven, Nucl. Phys. B {\bf 713}, 333 (2005);
P.~Mathews, V.~Ravindran, K.~Sridhar, 
J. High Energy Phys. {\bf 0510}, 031 (2005). 
%hep-ph/0506158.

\bibitem{statref} J.~Heinrich {\it et al.}, 
%C.~Blocker, J.~Conway, 
%L.~Demortler, L.~Lyons, G.~Punzi, and P.~Sinervo, 
arXiv:physics/0409129 (2004).

\bibitem{lepresults} S.~Ask, in Proceedings of 32nd 
International Conference on High Energy Physics (ICHEP 2004), 
Vol. {\bf 2}, 1289 (2005).
%{\it Search for extra dimensions at LEP},

%\bibitem{conwaylim}J.~Conway, CERN 2000-005, 247 (2000).

\bibitem{EotWash} C.~D.~Hoyle {\it et al.}, 
%D.~J.~Kapner, B.~R.~Heckel, 
%E.~G.~Adelberger, J.~H.~Gundlach, U.~Schmidt, H.~E.~Swanson,
Phys. Rev. D {\bf 70}, 042004 (2004).

%\end{references}
\end{thebibliography}