A Search for Neutral Higgs Bosons at High \tanb\ in multijet Events at $\sqrt{s}=$1.96~TeV
%% names begin here V.M.~Abazov
$^{35}$ B.~Abbott
$^{72}$ M.~Abolins
$^{63}$ B.S.~Acharya
$^{29}$ M.~Adams
$^{50}$ T.~Adams
$^{48}$ M.~Agelou
$^{18}$ J.-L.~Agram
$^{19}$ S.H.~Ahn
$^{31}$ M.~Ahsan
$^{57}$ G.D.~Alexeev
$^{35}$ G.~Alkhazov
$^{39}$ A.~Alton
$^{62}$ G.~Alverson
$^{61}$ G.A.~Alves
$^{2}$ M.~Anastasoaie
$^{34}$ T.~Andeen
$^{52}$ S.~Anderson
$^{44}$ B.~Andrieu
$^{17}$ Y.~Arnoud
$^{14}$ A.~Askew
$^{48}$ B.~{\AA}sman
$^{40}$ A.C.S.~Assis~Jesus
$^{3}$ O.~Atramentov
$^{55}$ C.~Autermann
$^{21}$ C.~Avila
$^{8}$ F.~Badaud
$^{13}$ A.~Baden
$^{59}$ B.~Baldin
$^{49}$ P.W.~Balm
$^{33}$ S.~Banerjee
$^{29}$ E.~Barberis
$^{61}$ P.~Bargassa
$^{76}$ P.~Baringer
$^{56}$ C.~Barnes
$^{42}$ J.~Barreto
$^{2}$ J.F.~Bartlett
$^{49}$ U.~Bassler
$^{17}$ D.~Bauer
$^{53}$ A.~Bean
$^{56}$ S.~Beauceron
$^{17}$ M.~Begel
$^{68}$ A.~Bellavance
$^{65}$ S.B.~Beri
$^{27}$ G.~Bernardi
$^{17}$ R.~Bernhard
$^{49,*}$ I.~Bertram
$^{41}$ M.~Besan\c{c}on
$^{18}$ R.~Beuselinck
$^{42}$ V.A.~Bezzubov
$^{38}$ P.C.~Bhat
$^{49}$ V.~Bhatnagar
$^{27}$ M.~Binder
$^{25}$ C.~Biscarat
$^{41}$ K.M.~Black
$^{60}$ I.~Blackler
$^{42}$ G.~Blazey
$^{51}$ F.~Blekman
$^{33}$ S.~Blessing
$^{48}$ D.~Bloch
$^{19}$ U.~Blumenschein
$^{23}$ A.~Boehnlein
$^{49}$ O.~Boeriu
$^{54}$ T.A.~Bolton
$^{57}$ F.~Borcherding
$^{49}$ G.~Borissov
$^{41}$ K.~Bos
$^{33}$ T.~Bose
$^{67}$ A.~Brandt
$^{74}$ R.~Brock
$^{63}$ G.~Brooijmans
$^{67}$ A.~Bross
$^{49}$ N.J.~Buchanan
$^{48}$ D.~Buchholz
$^{52}$ M.~Buehler
$^{50}$ V.~Buescher
$^{23}$ S.~Burdin
$^{49}$ T.H.~Burnett
$^{78}$ E.~Busato
$^{17}$ C.P.~Buszello
$^{42}$ J.M.~Butler
$^{60}$ J.~Cammin
$^{68}$ S.~Caron
$^{33}$ W.~Carvalho
$^{3}$ B.C.K.~Casey
$^{73}$ N.M.~Cason
$^{54}$ H.~Castilla-Valdez
$^{32}$ S.~Chakrabarti
$^{29}$ D.~Chakraborty
$^{51}$ K.M.~Chan
$^{68}$ A.~Chandra
$^{29}$ D.~Chapin
$^{73}$ F.~Charles
$^{19}$ E.~Cheu
$^{44}$ D.K.~Cho
$^{60}$ S.~Choi
$^{47}$ B.~Choudhary
$^{28}$ T.~Christiansen
$^{25}$ L.~Christofek
$^{56}$ D.~Claes
$^{65}$ B.~Cl\'ement
$^{19}$ C.~Cl\'ement
$^{40}$ Y.~Coadou
$^{5}$ M.~Cooke
$^{76}$ W.E.~Cooper
$^{49}$ D.~Coppage
$^{56}$ M.~Corcoran
$^{76}$ A.~Cothenet
$^{15}$ M.-C.~Cousinou
$^{15}$ B.~Cox
$^{43}$ S.~Cr\'ep\'e-Renaudin
$^{14}$ D.~Cutts
$^{73}$ H.~da~Motta
$^{2}$ B.~Davies
$^{41}$ G.~Davies
$^{42}$ G.A.~Davis
$^{52}$ K.~De
$^{74}$ P.~de~Jong
$^{33}$ S.J.~de~Jong
$^{34}$ E.~De~La~Cruz-Burelo
$^{32}$ C.~De~Oliveira~Martins
$^{3}$ S.~Dean
$^{43}$ J.D.~Degenhardt
$^{62}$ F.~D\'eliot
$^{18}$ M.~Demarteau
$^{49}$ R.~Demina
$^{68}$ P.~Demine
$^{18}$ D.~Denisov
$^{49}$ S.P.~Denisov
$^{38}$ S.~Desai
$^{69}$ H.T.~Diehl
$^{49}$ M.~Diesburg
$^{49}$ M.~Doidge
$^{41}$ H.~Dong
$^{69}$ S.~Doulas
$^{61}$ L.V.~Dudko
$^{37}$ L.~Duflot
$^{16}$ S.R.~Dugad
$^{29}$ A.~Duperrin
$^{15}$ J.~Dyer
$^{63}$ A.~Dyshkant
$^{51}$ M.~Eads
$^{51}$ D.~Edmunds
$^{63}$ T.~Edwards
$^{43}$ J.~Ellison
$^{47}$ J.~Elmsheuser
$^{25}$ V.D.~Elvira
$^{49}$ S.~Eno
$^{59}$ P.~Ermolov
$^{37}$ O.V.~Eroshin
$^{38}$ J.~Estrada
$^{49}$ H.~Evans
$^{67}$ A.~Evdokimov
$^{36}$ V.N.~Evdokimov
$^{38}$ J.~Fast
$^{49}$ S.N.~Fatakia
$^{60}$ L.~Feligioni
$^{60}$ A.V.~Ferapontov
$^{38}$ T.~Ferbel
$^{68}$ F.~Fiedler
$^{25}$ F.~Filthaut
$^{34}$ W.~Fisher
$^{66}$ H.E.~Fisk
$^{49}$ I.~Fleck
$^{23}$ M.~Fortner
$^{51}$ H.~Fox
$^{23}$ S.~Fu
$^{49}$ S.~Fuess
$^{49}$ T.~Gadfort
$^{78}$ C.F.~Galea
$^{34}$ E.~Gallas
$^{49}$ E.~Galyaev
$^{54}$ C.~Garcia
$^{68}$ A.~Garcia-Bellido
$^{78}$ J.~Gardner
$^{56}$ V.~Gavrilov
$^{36}$ P.~Gay
$^{13}$ D.~Gel\'e
$^{19}$ R.~Gelhaus
$^{47}$ K.~Genser
$^{49}$ C.E.~Gerber
$^{50}$ Y.~Gershtein
$^{48}$ D.~Gillberg
$^{5}$ G.~Ginther
$^{68}$ T.~Golling
$^{22}$ N.~Gollub
$^{40}$ B.~G\'{o}mez
$^{8}$ K.~Gounder
$^{49}$ A.~Goussiou
$^{54}$ P.D.~Grannis
$^{69}$ S.~Greder
$^{3}$ H.~Greenlee
$^{49}$ Z.D.~Greenwood
$^{58}$ E.M.~Gregores
$^{4}$ Ph.~Gris
$^{13}$ J.-F.~Grivaz
$^{16}$ L.~Groer
$^{67}$ S.~Gr\"unendahl
$^{49}$ M.W.~Gr{\"u}newald
$^{30}$ S.N.~Gurzhiev
$^{38}$ G.~Gutierrez
$^{49}$ P.~Gutierrez
$^{72}$ A.~Haas
$^{67}$ N.J.~Hadley
$^{59}$ S.~Hagopian
$^{48}$ I.~Hall
$^{72}$ R.E.~Hall
$^{46}$ C.~Han
$^{62}$ L.~Han
$^{7}$ K.~Hanagaki
$^{49}$ K.~Harder
$^{57}$ A.~Harel
$^{26}$ R.~Harrington
$^{61}$ J.M.~Hauptman
$^{55}$ R.~Hauser
$^{63}$ J.~Hays
$^{52}$ T.~Hebbeker
$^{21}$ D.~Hedin
$^{51}$ J.M.~Heinmiller
$^{50}$ A.P.~Heinson
$^{47}$ U.~Heintz
$^{60}$ C.~Hensel
$^{56}$ G.~Hesketh
$^{61}$ M.D.~Hildreth
$^{54}$ R.~Hirosky
$^{77}$ J.D.~Hobbs
$^{69}$ B.~Hoeneisen
$^{12}$ M.~Hohlfeld
$^{24}$ S.J.~Hong
$^{31}$ R.~Hooper
$^{73}$ P.~Houben
$^{33}$ Y.~Hu
$^{69}$ J.~Huang
$^{53}$ V.~Hynek
$^{9}$ I.~Iashvili
$^{47}$ R.~Illingworth
$^{49}$ A.S.~Ito
$^{49}$ S.~Jabeen
$^{56}$ M.~Jaffr\'e
$^{16}$ S.~Jain
$^{72}$ V.~Jain
$^{70}$ K.~Jakobs
$^{23}$ A.~Jenkins
$^{42}$ R.~Jesik
$^{42}$ K.~Johns
$^{44}$ M.~Johnson
$^{49}$ A.~Jonckheere
$^{49}$ P.~Jonsson
$^{42}$ A.~Juste
$^{49}$ D.~K\"afer
$^{21}$ S.~Kahn
$^{70}$ E.~Kajfasz
$^{15}$ A.M.~Kalinin
$^{35}$ J.~Kalk
$^{63}$ D.~Karmanov
$^{37}$ J.~Kasper
$^{60}$ D.~Kau
$^{48}$ R.~Kaur
$^{27}$ R.~Kehoe
$^{75}$ S.~Kermiche
$^{15}$ S.~Kesisoglou
$^{73}$ A.~Khanov
$^{68}$ A.~Kharchilava
$^{54}$ Y.M.~Kharzheev
$^{35}$ H.~Kim
$^{74}$ T.J.~Kim
$^{31}$ B.~Klima
$^{49}$ J.M.~Kohli
$^{27}$ M.~Kopal
$^{72}$ V.M.~Korablev
$^{38}$ J.~Kotcher
$^{70}$ B.~Kothari
$^{67}$ A.~Koubarovsky
$^{37}$ A.V.~Kozelov
$^{38}$ J.~Kozminski
$^{63}$ A.~Kryemadhi
$^{77}$ S.~Krzywdzinski
$^{49}$ Y.~Kulik
$^{49}$ A.~Kumar
$^{28}$ S.~Kunori
$^{59}$ A.~Kupco
$^{11}$ T.~Kur\v{c}a
$^{20}$ J.~Kvita
$^{9}$ S.~Lager
$^{40}$ N.~Lahrichi
$^{18}$ G.~Landsberg
$^{73}$ J.~Lazoflores
$^{48}$ A.-C.~Le~Bihan
$^{19}$ P.~Lebrun
$^{20}$ W.M.~Lee
$^{48}$ A.~Leflat
$^{37}$ F.~Lehner
$^{49,*}$ C.~Leonidopoulos
$^{67}$ J.~Leveque
$^{44}$ P.~Lewis
$^{42}$ J.~Li
$^{74}$ Q.Z.~Li
$^{49}$ J.G.R.~Lima
$^{51}$ D.~Lincoln
$^{49}$ S.L.~Linn
$^{48}$ J.~Linnemann
$^{63}$ V.V.~Lipaev
$^{38}$ R.~Lipton
$^{49}$ L.~Lobo
$^{42}$ A.~Lobodenko
$^{39}$ M.~Lokajicek
$^{11}$ A.~Lounis
$^{19}$ P.~Love
$^{41}$ H.J.~Lubatti
$^{78}$ L.~Lueking
$^{49}$ M.~Lynker
$^{54}$ A.L.~Lyon
$^{49}$ A.K.A.~Maciel
$^{51}$ R.J.~Madaras
$^{45}$ P.~M\"attig
$^{26}$ C.~Magass
$^{21}$ A.~Magerkurth
$^{62}$ A.-M.~Magnan
$^{14}$ N.~Makovec
$^{16}$ P.K.~Mal
$^{29}$ H.B.~Malbouisson
$^{3}$ S.~Malik
$^{58}$ V.L.~Malyshev
$^{35}$ H.S.~Mao
$^{6}$ Y.~Maravin
$^{49}$ M.~Martens
$^{49}$ S.E.K.~Mattingly
$^{73}$ A.A.~Mayorov
$^{38}$ R.~McCarthy
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$^{44}$ D.~Meder
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$^{15}$ M.~Merkin
$^{37}$ K.W.~Merritt
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$^{22}$ M.~Michaut
$^{18}$ H.~Miettinen
$^{76}$ J.~Mitrevski
$^{67}$ J.~Molina
$^{3}$ N.K.~Mondal
$^{29}$ R.W.~Moore
$^{5}$ G.S.~Muanza
$^{20}$ M.~Mulders
$^{49}$ Y.D.~Mutaf
$^{69}$ E.~Nagy
$^{15}$ M.~Narain
$^{60}$ N.A.~Naumann
$^{34}$ H.A.~Neal
$^{62}$ J.P.~Negret
$^{8}$ S.~Nelson
$^{48}$ P.~Neustroev
$^{39}$ C.~Noeding
$^{23}$ A.~Nomerotski
$^{49}$ S.F.~Novaes
$^{4}$ T.~Nunnemann
$^{25}$ E.~Nurse
$^{43}$ V.~O'Dell
$^{49}$ D.C.~O'Neil
$^{5}$ V.~Oguri
$^{3}$ N.~Oliveira
$^{3}$ N.~Oshima
$^{49}$ G.J.~Otero~y~Garz{\'o}n
$^{50}$ P.~Padley
$^{76}$ N.~Parashar
$^{58}$ S.K.~Park
$^{31}$ J.~Parsons
$^{67}$ R.~Partridge
$^{73}$ N.~Parua
$^{69}$ A.~Patwa
$^{70}$ G.~Pawloski
$^{76}$ P.M.~Perea
$^{47}$ E.~Perez
$^{18}$ P.~P\'etroff
$^{16}$ M.~Petteni
$^{42}$ R.~Piegaia
$^{1}$ M.-A.~Pleier
$^{68}$ P.L.M.~Podesta-Lerma
$^{32}$ V.M.~Podstavkov
$^{49}$ Y.~Pogorelov
$^{54}$ A.~Pompo\v s
$^{72}$ B.G.~Pope
$^{63}$ W.L.~Prado~da~Silva
$^{3}$ H.B.~Prosper
$^{48}$ S.~Protopopescu
$^{70}$ J.~Qian
$^{62}$ A.~Quadt
$^{22}$ B.~Quinn
$^{64}$ K.J.~Rani
$^{29}$ K.~Ranjan
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$^{61}$ M.~Rijssenbeek
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$^{57}$ S.~Robinson
$^{42}$ R.F.~Rodrigues
$^{3}$ C.~Royon
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$^{50}$ M.~Shamim
$^{57}$ V.~Shary
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$^{54}$ R.K.~Shivpuri
$^{28}$ D.~Shpakov
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$^{57}$ V.~Simak
$^{10}$ V.~Sirotenko
$^{49}$ P.~Skubic
$^{72}$ P.~Slattery
$^{68}$ R.P.~Smith
$^{49}$ K.~Smolek
$^{10}$ G.R.~Snow
$^{65}$ J.~Snow
$^{71}$ S.~Snyder
$^{70}$ S.~S{\"o}ldner-Rembold
$^{43}$ X.~Song
$^{51}$ L.~Sonnenschein
$^{17}$ A.~Sopczak
$^{41}$ M.~Sosebee
$^{74}$ K.~Soustruznik
$^{9}$ M.~Souza
$^{2}$ B.~Spurlock
$^{74}$ N.R.~Stanton
$^{57}$ J.~Stark
$^{14}$ J.~Steele
$^{58}$ K.~Stevenson
$^{53}$ V.~Stolin
$^{36}$ A.~Stone
$^{50}$ D.A.~Stoyanova
$^{38}$ J.~Strandberg
$^{40}$ M.A.~Strang
$^{74}$ M.~Strauss
$^{72}$ R.~Str{\"o}hmer
$^{25}$ D.~Strom
$^{52}$ M.~Strovink
$^{45}$ L.~Stutte
$^{49}$ S.~Sumowidagdo
$^{48}$ A.~Sznajder
$^{3}$ M.~Talby
$^{15}$ P.~Tamburello
$^{44}$ W.~Taylor
$^{5}$ P.~Telford
$^{43}$ J.~Temple
$^{44}$ M.~Tomoto
$^{49}$ T.~Toole
$^{59}$ J.~Torborg
$^{54}$ S.~Towers
$^{69}$ T.~Trefzger
$^{24}$ S.~Trincaz-Duvoid
$^{17}$ B.~Tuchming
$^{18}$ C.~Tully
$^{66}$ A.S.~Turcot
$^{43}$ P.M.~Tuts
$^{67}$ L.~Uvarov
$^{39}$ S.~Uvarov
$^{39}$ S.~Uzunyan
$^{51}$ B.~Vachon
$^{5}$ R.~Van~Kooten
$^{53}$ W.M.~van~Leeuwen
$^{33}$ N.~Varelas
$^{50}$ E.W.~Varnes
$^{44}$ A.~Vartapetian
$^{74}$ I.A.~Vasilyev
$^{38}$ M.~Vaupel
$^{26}$ P.~Verdier
$^{20}$ L.S.~Vertogradov
$^{35}$ M.~Verzocchi
$^{59}$ F.~Villeneuve-Seguier
$^{42}$ J.-R.~Vlimant
$^{17}$ E.~Von~Toerne
$^{57}$ M.~Vreeswijk
$^{33}$ T.~Vu~Anh
$^{16}$ H.D.~Wahl
$^{48}$ L.~Wang
$^{59}$ J.~Warchol
$^{54}$ G.~Watts
$^{78}$ M.~Wayne
$^{54}$ M.~Weber
$^{49}$ H.~Weerts
$^{63}$ M.~Wegner
$^{21}$ N.~Wermes
$^{22}$ A.~White
$^{74}$ V.~White
$^{49}$ D.~Wicke
$^{49}$ D.A.~Wijngaarden
$^{34}$ G.W.~Wilson
$^{56}$ S.J.~Wimpenny
$^{47}$ J.~Wittlin
$^{60}$ M.~Wobisch
$^{49}$ J.~Womersley
$^{49}$ D.R.~Wood
$^{61}$ T.R.~Wyatt
$^{43}$ Q.~Xu
$^{62}$ N.~Xuan
$^{54}$ S.~Yacoob
$^{52}$ R.~Yamada
$^{49}$ M.~Yan
$^{59}$ T.~Yasuda
$^{49}$ Y.A.~Yatsunenko
$^{35}$ Y.~Yen
$^{26}$ K.~Yip
$^{70}$ H.D.~Yoo
$^{73}$ S.W.~Youn
$^{52}$ J.~Yu
$^{74}$ A.~Yurkewicz
$^{69}$ A.~Zabi
$^{16}$ A.~Zatserklyaniy
$^{51}$ M.~Zdrazil
$^{69}$ C.~Zeitnitz
$^{24}$ D.~Zhang
$^{49}$ X.~Zhang
$^{72}$ T.~Zhao
$^{78}$ Z.~Zhao
$^{62}$ B.~Zhou
$^{62}$ J.~Zhu
$^{69}$ M.~Zielinski
$^{68}$ D.~Zieminska
$^{53}$ A.~Zieminski
$^{53}$ R.~Zitoun
$^{69}$ V.~Zutshi
$^{51}$ and~E.G.~Zverev$^{37}$
\vskip 0.30cm \centerline{(D\O\ Collaboration)} \vskip 0.30cm
We have performed a search for neutral Higgs bosons produced in association with bottom quarks in $p\bar{p}$ collisions, % at $\sqrt{s} = 1.96$~GeV %. A search for the production of neutral Higgs bosons in association %. with bottom quarks using 260~\ipb\ of data collected with the \dzero\ detector in Run II of the Fermilab Tevatron Collider. The cross sections for these processes are enhanced in many extensions of the standard model (SM), such as in its minimal supersymmetric extension at large \tanb. The results of our analysis agree with expectations from the SM, and we use our measurements to set upper limits on the production of neutral Higgs bosons in the mass range of 90 to 150~\gev.
acknowledgement_paragraph_r2.tex
% acknowledgement_paragraph_r2.tex                4/8/05
%
We thank the staffs at Fermilab and collaborating institutions, 
and acknowledge support from the 
DOE and NSF (USA),
CEA and CNRS/IN2P3 (France),
FASI, Rosatom and RFBR (Russia),
CAPES, CNPq, FAPERJ, FAPESP and FUNDUNESP (Brazil),
DAE and DST (India),
Colciencias (Colombia),
CONACyT (Mexico),
KRF (Korea),
CONICET and UBACyT (Argentina),
FOM (The Netherlands),
PPARC (United Kingdom),
MSMT (Czech Republic),
CRC Program, CFI, NSERC and WestGrid Project (Canada),
BMBF and DFG (Germany),
SFI (Ireland),
A.P.~Sloan Foundation,
Research Corporation,
Texas Advanced Research Program,
Alexander von Humboldt Foundation,
and the Marie Curie Fellowships.
%

bbh_analysis_prl_p14.tex
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% Choose pra, prb, prc, prd, pre, prl, prstad0tce_hp8150_db, or rmp for journal
%  Add 'draft' option to mark overfull boxes with black boxes
%  Add 'showpacs' option to make PACS codes appear
\documentclass[aps,prl,showpacs,twocolumn,lineno,groupedaddress]{revtex4}  % for review
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%\documentclass[aps,prl,showpacs,twocolumn,groupedaddress]{revtex4}  % for submission
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\usepackage{bm}        % for math
\usepackage{amssymb}   % for math

\begin{document}
\input{definitions}

% The following information is for internal review, please remove them for submission
%\leftline{Version 2.35 as of \today} \leftline{Primary authors: A.
%Haas, A. Kharchilava, J. Rani} \rightline{Comment to {\tt
%d0-run2eb-018@fnal.gov}} \rightline{by March 26, 2005}

\hspace{5.2in}\mbox{FERMILAB-PUB-05/058-E}

%\title{A Search for Neutral Higgs Bosons at High \tanb\ in multijet Events at $\sqrt{s}=$1.96~TeV}
\title{Search for neutral supersymmetric Higgs bosons in multijet events at $\sqrt{s}=$1.96~TeV}
\input{list_of_authors_r2.tex} % input Dzero author list

\date{April 9, 2005}
%\date{\today}

\begin{abstract}
We have performed a search for neutral Higgs bosons produced in association
with bottom quarks in $p\bar{p}$ collisions,
% at $\sqrt{s} = 1.96$~GeV
%. A search for the production of neutral Higgs bosons in association
%. with bottom quarks
using 260~\ipb\ of data collected with the \dzero\ detector in Run
II of the Fermilab Tevatron Collider. The cross sections for these
processes are enhanced in many extensions of the standard model
(SM), such as in its minimal supersymmetric extension at large
\tanb. The results of our analysis agree with expectations from the
SM, and we use our measurements to set upper limits on the
production of neutral Higgs bosons in the mass range of 90 to
150~\gev.
\end{abstract}

%Here are the relevant PACS numbers that we can quote in PRL
%(taken from http://www.aip.org/pacs/pacs03/pacs0310.html):
%PACS: 12.38.Qk, 12.60.Fr, 13.85.Rm, 14.80.Cp

\pacs{12.38.Qk, 12.60.Fr, 13.85.Rm, 14.80.Cp} \maketitle

In two-Higgs-doublet models of electroweak symmetry breaking, such
as the minimal supersymmetric extension of the standard model
(MSSM)~\cite{2HDM}, there are five physical Higgs bosons:
%resulting from symmetry breaking
two neutral $CP$-even scalars, \hboson\ and
\Hboson, with \Hboson\ being the heavier state; a neutral $CP$-odd state,
\Aboson; and two charged states, \Hboson$^\pm$. The ratio of the vacuum
expectation values of the two Higgs fields is defined as \tanb\ =
$v_2/v_1$, where $v_2$ and $v_1$ refer to the fields that couple to
the up-type and down-type fermions, respectively.
%. At tree level, the
%. coupling of the neutral Higgs bosons to down-type quarks, such
%. as the \btag\ quark, is enhanced by a factor of \tanb\ relative to
%. the standard model (SM), and production cross sections
%. are therefore enhanced by $\tan^{2}\beta$~\cite{MSSM_Higgs}.
%and branching fractions to \bbbar\ by approximately \tanb.
%fractions to \bbbar\ are large.
At tree level, the coupling of the $A$ boson to down-type quarks,
such as the \btag\ quark,
is enhanced by a factor of \tanb\ relative to the standard model (SM),
and the production
cross section is therefore enhanced by $\tan^{2}\beta$~\cite{MSSM_Higgs}.
At large \tanb, this is
also true either for the $h$ or $H$ boson depending on their mass.

For several representative scenarios of the MSSM, LEP experiments
have excluded at the 95\% C.L. a light Higgs boson with mass
%. a lightest neutral Higgs boson mass
$m_h$ \lt\ 92.9~\gev~\cite{leplimit}. At hadron colliders, neutral
Higgs bosons can be produced in association with \btag\ quarks,
leading to final states containing three or four \btag\ jets. The CDF
experiment at the Tevatron Collider performed a search
for these events in data from Run~I~\cite{cdfrunIlimit}.
%CDF has performed search using 91\ipb\ of data from Run~I of the Fermilab Tevatron
%CDF has excluded at 95\% C.L. values of \tanb\gt 60-100 in the MSSM for
%$m_A$ ranging from the LEP lower limit up to 200~\gev, using 91
%\ipb\ of data from Run~I of the Fermilab Tevatron
%\cite{cdfrunIlimit}. However, CDF has recently acknowledged that the
%use of older PDF's (CTEQ3L) had increased their signal acceptance by
%at least a factor of 2 [???].

Higgs boson production in association with \btag\ quarks in \ppbar\
collisions can be calculated in two ways: in the five-flavor
scheme~\cite{5fns}, only one \btag\ quark has to be present, while
in the four-flavor scheme~\cite{4fns}, two \btag\ quarks are
explicitly required in the final state. Both calculations are now
available at next-to-leading order (NLO), and agree within their
respective theoretical uncertainties~\cite{bh_NLO,top_NLO}.
Figure~\ref{fig:Feynman} illustrates these processes for \hboson\
production at leading order (LO), and analogous diagrams can be
drawn for the \Hboson\ and \Aboson\ bosons.
%Associated production of neutral Higgs bosons at the Fermilab
%Tevatron \ppbar\ collider with either one or two high-$p_T$ (\gt 15
%~\gev) bottom quarks takes place through the leading-order (LO)
%processes: gg,\qqbar\rarrow\bbbar h~\cite{4fns}, as shown in the top half
%of Fig.~\ref{fig:Feynman}. Similar diagrams exist for H and A as well.
%Large logarithms of $(m_h/m_b)$ can be re-summed by considering the %LO
%process: gb\rarrow bh~\cite{5fns}, as shown in the bottom half of
%Fig.\ref{fig:Feynman}.

\begin{figure}\centering
\includegraphics[width=3.0in]{bghb_feyn.eps}
% \vspace*{5mm}
\includegraphics[width=3.0in]{ggbbh_feyn.eps}
\caption{Leading-order Feynman diagrams for %bbh (top) and bh (bottom) production.
neutral Higgs boson production in the five-flavor scheme (top) and
four-flavor scheme (bottom). } \label{fig:Feynman}
\end{figure}

In this Letter, we assume $CP$-conservation in the Higgs sector. The
masses, widths, and branching fractions for the neutral Higgs bosons
into \bbbar\ pairs are calculated using the {\sc CPsuperH}
program~\cite{cpsuperh,carena}.
%They are predicted to decay to \bbbar\ about 90\% of the time.
%at high \tanb\, whenever their production in association with \btag\ quarks is enhanced.
The current analysis is sensitive to \tanb\ in the range 50 -- 100,
and depends on the Higgs boson mass.
%At \tanb\ $\gsim$ 50
%. For the range of \tanb\ this analysis is currently sensitive to (50
%. -- 100), the \Aboson\ boson is nearly degenerate in mass with either
%. the \hboson\ or the \Hboson\ boson, and their widths are small
%. compared to the di-jet mass resolution of the detector.
%Since for \tanb\ $\lsim$ 100 the Higgs bosons widths
%are small compared to the di-jet
%mass resolution of the detector,
In this region of \tanb, the \Aboson\ boson is nearly degenerate in
mass with either the \hboson\ or the \Hboson\ boson, and their
widths are small compared to the di-jet mass resolution.
%. of the detector.
Consequently, we cannot distinguish between the \hboson/\Hboson\
and the \Aboson, and the total cross section for signal is
assumed to be twice that of the
\Aboson\ boson.
%As a result this analysis is unable to distinguish
%between the , we assume that production of the \hboson/\Hboson\ doubles the total cross section.
In the region of $m_A$ from 100 to 130~\gev, all three neutral Higgs
bosons can be degenerate in mass and produced
simultaneously~\cite{boos}. Nevertheless, the total cross section
still remains twice that of the \Aboson\ boson.
%This effectively doubles the production cross section as in the previous case.
%In both cases, the sum of the \hboson\ and the \Hboson\ production cross sections is equal to that of
%the \Aboson.
% thus total neutral Higgs production cross section is twice that of
%{\it [This introduction will be updated after we get input from theoreticians.]}
Using data collected by the \dzero\ detector from November 2002 to
June 2004, corresponding to an integrated luminosity of about
260~\ipb, we search for an excess in the invariant
mass distribution of the two leading transverse momentum (\pt) jets
in events containing three or more \btag\ quark candidates.
% \btag-jets.
%The background shape is determined
%by applying the kinematic \btag-tagging bias, measured in data,
%from an extrapolation of the data sample with two \btag-jets. This
%from the multijet data sample with two \btag-jets. This
%expected background is normalized to data with three \btag-jets
%outside the expected signal region.
%The double and triply \btag-tagged data are also compared to Monte Carlo (MC) simulations.

The D\O\ detector has a magnetic central tracking system surrounded
by a uranium/liquid-argon calorimeter, contained within a muon
spectrometer. The tracking system consists of a silicon microstrip
tracker (SMT) and a central fiber tracker (CFT), both located within
a 2~T solenoidal magnet~\cite{run2det}. The SMT and CFT have designs
optimized for tracking and vertexing at pseudorapidities
$|\eta|<2.5$, where $\eta = -\ln(\tan(\theta/2))$ and $\theta$ is
the polar angle with respect to the proton beam direction ($z$). The
calorimeter has a central section (CC) covering up to $|\eta|
\approx 1.1$, and two end calorimeters (EC) extending coverage to
$|\eta|\approx 4.2$, all housed in separate
cryostats~\cite{run1det}. The calorimeter is divided into an
electromagnetic part followed by fine and coarse hadronic sections.
Scintillators between the CC and EC cryostats provide additional
sampling of developing showers for $1.1<|\eta|<1.4$. The muon system
consists of a layer of tracking detectors and scintillation trigger
counters in front of 1.8~T toroidal magnets, followed by two similar
layers behind the toroids, which provide muon tracking for
$|\eta|<2$. The luminosity is measured using scintillator arrays
located in front of the EC cryostats, covering $2.7<|\eta|<4.4$. The
trigger system comprises three levels (L1, L2, and L3),
%the first
%consisting solely of custom hardware elements, whereas the second
%and third levels perform partial and nearly full event
%reconstructions, respectively.
each performing an increasingly detailed event reconstruction in
order to select the events of interest.

The large cross section for multijet production necessitates a
specialized trigger to maximize signal acceptance while providing
reasonable rates. This trigger at L1 requires signals in at least
three calorimeter towers of size
$\Delta\eta\times\Delta\varphi=0.2\times0.2$ (where $\varphi$ is the
azimuthal angle), each with transverse energy $E_T > 5$~GeV; three
clusters and $H_T^{L2}>50$~\gev\ at L2 ($H_T^{L2} \equiv$ scalar sum
of the L2 clusters \et\ with \et\gt 5 \gev), and three jets with
$\pt>15$~\gev\ at L3. A total of 87 million events were selected
off-line with one jet of $\pt>20$~\gev\ and at least two more jets
with $\pt>15$~\gev.
%, all with $|\eta| < 2.6$.
%(\lt 4 Hz), as well as constraints at earlier trigger %levels, up to high
%luminosity ($6\times 10^{31} cm^{-2}s^{-1}$).
%The trigger demanded three calorimeter towers with \et\gt 5 at L1,
%three L2 ``jets'' with \et\gt 8~\gev\ and total L2 $H_T$ (scalar sum
%of L2 jets with \et\gt 5~\gev) above 50~\gev\ and three L3 jets with
%\et\gt 15~\gev. The detector \aeta\ coverage was up to 2.4 at L1/L2
%and 3.0 at L3. A total of about 87 million events were
%selected with one reconstructed 0.5 simple-cone jet \cite{RunIIcone}
%with \pt\gt 20~\gev\ and another two with \pt\gt 15~\gev\ and
%\aeta\lt 2.6 (uncorrected, before any jet quality cuts).
%Later trigger versions also demanded that either two
%of the L3 jets have \et\gt 25~\gev\ or that a loose muon was found at L2.
Jets are reconstructed using a Run~II cone
algorithm~\cite{RunIIcone} with radius
$\Delta{\cal{R}}=\sqrt{(\Delta \eta)^2+(\Delta \varphi)^2}<0.5$, and are
then required to pass a set of quality criteria.
To be accepted for further analysis, jets with
$\pt>15$~\gev\ must have $|\eta|<2.5$. The jet energies are
corrected to the particle level
%for detector and physics effects
using $\eta$-dependent scale factors. Events with up to five jets
are selected if they have a primary vertex position
$|z|<35~\mathrm{cm}$ and at least three jets with corrected
$\pt>35$, 20, and 15~\gev. Depending on the hypothesized Higgs boson
mass, the final selections are chosen to optimize the expected
signal significance, defined as $S/\sqrt{B}$, where $S$ ($B$) refers
to the number of signal (background) events.
%Events are required to have at least three jets with corrected $\pt>35$, 20,
%and 15~\gev, but not more than five jets, based on studies which
%optimize the signal significance in simulations.
%Their energies were corrected back to the particle
%level for detector and physics effects using jet energy scale factors.
%Jets were also required to have $|\eta| < 2.5$ and $\pt > 15$~\gev\ in
%order to have the jet energy scale applied to them.
%Events were selected which have at least
%three jets with $\pt > 35$, 20, and 15~\gev, but not more than five jets.
%Harder jet thresholds had small effects on the expected signal
%significance in simulations.
Jets containing \btag\ quarks are identified using a secondary
vertex (SV) tagging algorithm. A jet is tagged as a \btag-jet if it
has at least one SV within $\Delta{\cal{R}}<0.5$ of the jet axis
and a transverse displacement from the primary vertex that
exceeds five times the displacement uncertainty. Jets are \btag\ tagged up to
$|\eta|<2.5$, although the \btag\ tagging is about twice as
efficient in the central region ($|\eta|<1.1$) because of the CFT
coverage.
%improved tracking resolution provided by the CFT.
The \btag\ tagging efficiency is $\approx$~55\% for central
\btag-jets of $\pt>35$~\gev, with a light quark (or gluon) tag rate
of about 1\%.

Signal events were simulated using the
% {\footnotesize PYTHIA}
{\sc pythia}~\cite{pythia} event generator followed by the full
\dzero\ detector simulation and reconstruction chain. {\sc pythia}
minimum-bias events were added to all generated events, using a
Poisson probability with a mean of 0.4 events to match the
instantaneous luminosities at which the data were taken ($1-6\times
10^{31} {\mathrm{cm}}^{-2}\mathrm{s}^{-1}$). The \bh\ events, with
\hboson\rarrow\bbbar, were generated for Higgs boson masses from 90
to 150 \gev. Reconstructed jets in simulated events were corrected
to match the jet reconstruction and identification efficiencies in
data. The energy of simulated jets was smeared to match the measured
jet energy resolution. The \pt\ and rapidity spectra of the Higgs
bosons from {\sc pythia} were compared to those from the NLO
calculation~\cite{5fns}. The shapes were similar, indicating that
the {\sc pythia} kinematics are approximately correct.
%To further improve the accuracy of the expectation,
The simulated events were weighted to match the \pt\
spectrum of the Higgs boson given by NLO, resulting in
a 10\% reduction of the overall
signal efficiency.
% Need to cross check with new -- 13%
%We also verified with the {\footnotesize PYTHIA} event generator that the
%kinematic distributions of bh and bbh events after radiation and
%showering agreed well, and present a small systematic error.

Of all SM processes, multijet production is the major source of
background. This background is determined from data by normalizing
distributions outside of the signal region. As a cross-check, we
also compare data with simulations. {\sc alpgen}~\cite{alpgen} is
used to generate three samples of events for \bbj\ and \bbjj\ with
$j$ corresponding to up, down, strange or charm quarks, or gluons,
and \bbbar\bbbar\ final states with generator-level requirements:
$p_T^b>25$~\gev, $p_T^j>15$~\gev, $\aeta<3.0$, and
$\Delta{\cal{R}}>0.4$ between any two final-state partons. These
selections do not introduce significant bias because the final
sample contains much harder jets, after the application of trigger
and \btag-tagging requirements. Samples of \bbj\ and \bbjj\ are
added together, but the \bbjj\ sample is weighted by 0.85 to match
the jet multiplicity observed in doubly \btag-tagged data. The cross
sections obtained from {\sc alpgen} are 8.9~nb, 3.9~nb, and 60~pb,
for the respective three states. All other backgrounds are expected
to be small and are simulated with {\sc pythia}:
\ppbar\rarrow\zboson(\rarrow\bbbar)+jets, \ppbar\rarrow\zb, and
\ppbar\rarrow\ttbar. Cross sections of
%. 1.18~nb
1.2~nb, 40~pb~\cite{Zb_NLO},
and 7~pb are assumed, respectively.

%There are three categories of of multijet background events considered:
%multijet fakes, heavy-flavor (HF), and other contributions. multijet
%fakes is multijet production, where light-quark or gluon jets have been
%falsely identified as \btag-jets, or possibly gluon-jets where the gluon has
%split into b or c-quarks. The multijet fakes are estimated from data.
%The contribution to the mis-tag functions from isolated bottom and/or charm
%jets is removed by estimating the fraction of \bbj(j) events in the
%full multijet data sample (1.2\%) from an initial fit to the double
%\btag-tagged data, and removing the contribution to the fake-tag functions
%from these events.The corrected mis-tag functions are then used to
%estimate the contribution from the second background category by applying them
%to every jet in the full data sample.

%%%%% Figs were here %%%%%%%%%%%

There are two main categories of multijet background. One contains
genuine heavy-flavor (HF) jets, while the other has only light-quark
or gluon jets that are mistakenly tagged as \btag-quark jets, or
correspond to gluons that branch into nearly collinear \bbbar\
pairs. Using the selected data sample, before the application of
\btag-tagging requirements, the probability to \btag-tag a jet is
measured as a function of its \pt\ in three \aeta\ regions. These
functions are called ``mis-tag'' functions. They are corrected for
the contamination from true HF events
%. in the data sample from which they were derived
by subtracting the estimated fraction of \bb\ events in the
multijet data sample (1.2\%), obtained from an initial fit to the doubly
\btag-tagged data.
%. and subtracting the contribution from these events.
These corrected mis-tag functions are then used to estimate
the mis-tagged background, by applying them to every jet
reconstructed in the full data sample.

%The double \btag-tagged multijet background is compared to
%simulations first, due to its high statistics.
In order to test the modeling of the mis-tag background, the high
statistics doubly \btag-tagged data is compared to simulations
first, before extrapolating to the triply \btag-tagged background.
The expected signal contribution to the doubly \btag-tagged data is
negligible. The comparison in invariant mass spectrum of the two
jets of highest \pt\ (not necessarily the two \btag-tagged jets) in
the doubly \btag-tagged data with the expected background is shown
in Fig.~\ref{fig:Final_QCD_fit}. The \btag-tagging in this analysis
does not distinguish between contributions from bottom and charm
events. However, the efficiency for tagging a $c$-jet is known from
simulations to be about $1/4$ of that for tagging a \btag-jet.
Therefore, when two \btag-tags are required, the fraction of \cc\
events relative to \bb\ events will be a factor of
%. approximately $4^2$=
$\approx$~16 lower after tagging.
%than it was before
We have estimated the fractions of \ccjj\ to \bbjj\ prior to
\btag-tagging using the {\sc madgraph} Monte Carlo
generator~\cite{madgraph}. The \ccjj\ cross section is 22\% higher
than \bbjj\ for the same generator-level selections. Therefore,
the contribution of \cc\ in the doubly \btag-tagged data sample is
expected to represent about
%$1.22/16=8$\%
8\% of the events. Thus, when we refer to the \bb\ normalization, it
should be understood that approximately 8\% of the events are from
the \cc\ process. After these corrections for \cc\ events, the HF
multijet processes are only a factor of 1.08 higher in data than
predicted by {\sc alpgen}.
%. The data agree well with the shape of the
%. estimated background over the entire invariant mass region.
The shape of the estimated background agrees well with the data over
the entire invariant mass region.

%1.08 $\pm$ 0.01 (stat)
%much better agreement than seen in comparisons to older MC simulations
%\cite{mctuning}.

%The probability for each of the events to have three or more \btag-tags
%is used to weight each event. We will refer to this estimation of the
%background as the ``triply \btag-tag estimation''.

\begin{figure}\centering
\includegraphics[width=3in]{FitDoubleTag_260_svloose_jetonly.eps}
\caption{Fit of the invariant mass spectrum of the two leading \pt\
jets in the doubly \btag-tagged data to a sum of backgrounds:
mis-tags derived from data (dotted), \bb\ (dashed), and other
backgrounds (\zboson(\rarrow\bbbar)+jets, \zb, \ttbar\ and
\bbbar\bbbar) (dashed-dotted).} \label{fig:Final_QCD_fit}
\end{figure}

\begin{figure}\centering
\includegraphics[width=3in]{limit_mh120.eps}
% \caption{The di-jet invariant mass spectrum of the triply
% \btag-tagged data, estimated background, and 120~\gev\ Higgs boson
% signal at the 95\% C.L. exclusion limit.} \label{fig:mh_limit}
% \caption{The di-jet invariant mass spectrum of the triply
\caption{Invariant mass spectrum of two leading jets in events with
at least three \btag-tagged jets, estimated background, and the
signal for a 120~\gev\ Higgs boson that can be excluded at the 95\%
C.L.} \label{fig:mh_limit}
\end{figure}

To estimate the background for triply \btag-tagged events, the
mis-tag function is applied to the non-\btag-tagged jets in the
doubly \btag-tagged events. This provides the shape of the multijet
background distribution with at least three \btag-tagged jets. This
neglects any contributions from processes with more than two true
\btag-jets, such as from \bbbar\bbbar\ and
\zboson(\rarrow\bbbar)\bbbar\ production. However, the shapes of
these backgrounds from simulations are similar to those of the
doubly \btag-tagged spectra, and their rates are small. The overall
background normalization is therefore determined by fitting the
leading two jets invariant mass spectrum in triply \btag-tagged
events outside of the hypothesized signal region
%. ($\pm 1\sigma$ of the Gaussian fit to the expected signal) with
to the estimated shape for triply
\btag-tagged background. The systematic effect on the
normalization of the background from any signal contributing
outside the search window was studied and found to be small relative
to other uncertainties, as described below.

%The overall trigger efficiency is subject to uncertainties coming from the
%limited statistics of the data samples used to measure the trigger
%efficiencies, the inaccuracy with which the parameterized turn-on
%curves represent the true efficiencies, and the limitations of the
%assumptions made about the independence of jets at the trigger level.

The selections in this analysis can be grouped into trigger level,
kinematic (\pt, \peta, \nj), where \nj\ is the number of untagged
jets, and \btag-tagging. Table~\ref{table:Acceptance_Cutflow} shows
the acceptances for each set of criteria made in the analysis, for
six values of Higgs boson mass. The systematic uncertainty on signal
acceptance is nearly independent of assumed $m_A$, and is dominated
by the uncertainty on \btag-tagging efficiency ($\pm$15\%), followed
by uncertainties on jet energy scale, resolution and identification
efficiency ($\pm$9\% in sum). These uncertainties are calculated by
repeating the analysis with each value changed by $\pm$ one standard
deviation (sd). The systematic uncertainties corresponding to
uncertainties in \pt\ distributions for simulated signal at NLO, the
integrated luminosity, and the trigger efficiency are
%. independent of the assumed $m_A$, and
found to be $\pm$5\%, $\pm$6.5\%, and $\pm$9\%, respectively. These
uncertainties, added in quadrature, result in a total systematic
uncertainty of $\pm$21\%.

%.Signal acceptance uncertainties are evaluated for
%.various masses and are listed in
%.Table~\ref{table:Acceptance_Errors}. Systematic uncertainties resulting
%.from the \btag-tagging efficiency, jet energy scale, jet energy
%.resolution, and jet reconstruction/identification uncertainties are
%.calculated by repeating the analysis with each value varied by $\pm
%.1 \sigma$. The systematic uncertainties corresponding to the \pt\
%.distributions of the simulated signal events at NLO, the integrated
%.luminosity, and the trigger efficiency are independent of the
%.assumed $m_A$, and found to be 5\%, 6.5\%, and 9\%, respectively.

%The systematic uncertainty is dominated by the uncertainty on
%\btag-tagging efficiency, followed by uncertainties on jet reconstruction/identification efficiency,
%jet energy scale and jet energy resolution. These are calculated by repeating the analysis,
%varying their central values up and down by $\pm 1 \sigma$.

%The uncertainties which affect the signal acceptance are added in
%quadrature, and those which depend on the assumed $m_A$ are shown in
%Table~\ref{table:Acceptance_Errors}. The total trigger uncertainty
%is estimated to be $\pm$9\%, independent of assumed $m_A$. The systematic
%uncertainties resulting from the \btag-tagging efficiency, jet energy scale, jet
%energy resolution, and jet reconstruction/identification uncertainties
%were calculated by repeating the analysis, changing their values
%up and down by $\pm 1 \sigma$. The procedure used to normalize the simulated
%signal events to the NLO cross sections and \pt\ spectra is only an
%approximation to reproducing the full NLO kinematics, thus an uncertainty
%of half the re-weighting correction is assigned, 5\%. The absolute
%value of the integrated luminosity that the data sample corresponds
%to has an uncertainty of 6.5\%.

The accuracy in modeling the shape of the background distribution can be
estimated from the $\chi^{2}/dof$ between the estimated
background and the data. The statistical error associated with
the uncertainty in the normalization of the background (from the fit
outside the signal region) is multiplied by
$\sqrt{\chi^{2}/dof}$. The background uncertainty is estimated to
be $\lsim$ 3\%. The systematic uncertainty arising from the width chosen
for the search window
% chosen during background normalization
is evaluated by varying
%the width of the search window
it from less than the resolution to $\pm 1.8$ sd, centered on the peak value.
The resulting change in background normalization is much smaller
than from other sources of background uncertainties.

%The uncertainty related to the background normalization
%is calculated by varying the signal search window size from $\pm 1 \sigma$ (default value)
%to $\pm 1.8\sigma$. This yields to 4\% uncertainty.

%There is a statistical error associated with the uncertainty in the
%normalization of the background, as fit outside the signal region and
%is estimated to be 3\%, independent of the considered Higgs boson mass.
%The uncertainty related to the choice of the signal search region is evaluated by
%examining two more search windows, $\pm 1.5\sigma$ and $\pm 1.8\sigma$,
%and the change is within the background uncertainty of $\lsim$ 3\%.


\begin{table} \centering
\caption{Signal acceptances for each set of criteria (in
\%).}
%for each $m_h$.}
\begin{ruledtabular}
\begin{tabular}{ccccc}
$m_A$ (\gev) & Trigger & Kinematic & \btag-tag & Total \\ \hline
90  & 44 & 18 & 3.5 & 0.3 \\
100 & 45 & 24 & 3.5 & 0.4 \\
110 & 56 & 24 & 3.9 & 0.5 \\
120 & 60 & 27 & 4.2 & 0.7 \\
130 & 65 & 29 & 4.3 & 0.8 \\
150 & 76 & 31 & 4.4 & 1.0 \\
\end{tabular}
\end{ruledtabular}
\label{table:Acceptance_Cutflow}
\end{table}

%.\begin{table} \centering
%.\caption{The uncertainties from each source (in \%). Other small
%.uncertainties which do not depend on mass are also added in
%.quadrature to the total (see text).}
%.%which are added in quadrature to give the total uncertainties on acceptance.}
%.\begin{ruledtabular}
%.\begin{tabular}{cccccc}
%.$m_A$ (\gev) & \btag-tag & Jet Energy & Jet Energy & Jet-ID & Total \\
%.             &            &  Scale     & Resolution &        &      \\ \hline
%. 90 & 14 & 7.5 & 1.4 & 3.8 & 20.4 \\
%.100 & 15 & 7.1 & 0.7 & 3.8 & 21.0 \\
%.110 & 14 & 8.1 & 0.7 & 3.7 & 20.6 \\
%.120 & 14 & 8.5 & 0.8 & 3.6 & 21.0 \\
%.130 & 14 & 7.8 & 0.4 & 3.3 & 20.4 \\
%.150 & 15 & 7.7 & 0.8 & 3.4 & 21.1 \\
%.\end{tabular}
%.\end{ruledtabular}
%.\label{table:Acceptance_Errors}
%.\end{table}


\begin{figure}\centering
%\includegraphics[width=3in]{eps_p14/cs_limit_260.eps}
%\includegraphics[width=3in]{eps_p14/cs_limit_tanb80.eps}
\includegraphics[width=3in]{cs_limit_tanb.eps}
%\includegraphics[width=3in]{eps_p14/cs_limit_new.eps}
\caption{The expected and measured 95\% C.L. upper limits on the signal
cross section as a function of $m_A$. The band
indicates the $\pm 1$ sd range on the expected limit. Also shown
is the cross section for the signal at \tanb\ = 80 in the ``no
mixing'' scenario of the MSSM, with the theoretical uncertainty
indicated by the overlaid band.} \label{fig:mA_cs}
\end{figure}

%The $CL_S$ method, with $CL_S = CL_{S+B}/CL_B$,
A modified frequentist method is used to set limits on the
production of signal~\cite{mclimit}. The di-jet invariant mass
distributions in triply \btag-tagged events of data, simulated
signal, and the normalized background were used as inputs. The value
of \tanb\ was varied
%, starting at 50, either up or down
until the confidence level for signal ($CL_S$) was $<5$\%.
Figure~\ref{fig:mh_limit} shows the data, background, and simulated
signal at the exclusion limit, for $m_A$ = 120~\gev. This is
converted to a cross section limit for signal production in
Fig.~\ref{fig:mA_cs}, which also shows the expected MSSM Higgs boson
production cross section as a function of $m_A$ for \tanb\ = 80, and
the median expected limit with the background-only hypothesis along
with its $\pm$ 1 sd range. The NLO cross sections and their
uncertainties from parton distribution functions (PDF) and scale
dependence are taken from Refs.~\cite{5fns,top_NLO}. The MSSM cross
section shown in Fig.~\ref{fig:mA_cs} corresponds to no mixing in
the scalar top quark sector~\cite{tev}, or $X_{t}$ = 0, where
${X_{t} = A_{t} - \mu\cot\beta}$, $A_{t}$ is the tri-linear
coupling, and the Higgsino mass parameter $\mu = -0.2$~TeV. We also
interpret our results in the ``maximal mixing'' scenario with $X_{t}
= \sqrt6 \times M_{\text{SUSY}}$, where $M_{\text{SUSY}}$ is the
mass scale of supersymmetric particles, taken to be 1~TeV.

Results for both scenarios of the MSSM are shown in
Fig.~\ref{fig:mA_tanb} as limits in the \tanb\ versus $m_A$ plane.
The present D\O\ analysis, based on 260~\ipb\ of data, excludes a
significant portion of the parameter space, down to \tanb = 50,
depending on $m_A$ and the MSSM scenario assumed.

%Assuming that no
%deviation is observed between the data and the expected background
%in the future, the 95\% C.L. limits on MSSM parameters which couldw
%be set given additional luminosity can be predicted, as shown in
%Fig.~\ref{fig:mh_tanb_future}.

\begin{figure}\centering
%\includegraphics[width=3in]{eps_p14/mA_tanb_svloose_260_jetonly.eps}
%\includegraphics[width=3in]{eps_p14/mA_tanb_combined.eps}
\includegraphics[width=3in]{mA_tanB_no_max.eps}
\caption{The 95\% C.L. upper limit on \tanb\ as a function of $m_A$
for two scenarios of the MSSM, ``no mixing'' and ``maximal mixing.''
Also shown are the limits obtained by the LEP
experiments for the same two scenarios of the MSSM~\cite{leplimit}.}
\label{fig:mA_tanb}
%assuming $\tan^{2}\beta$ cross section enhancement.
%LEP lower limits are indicated for maximal and no
%mixing scenarios.} \label{fig:mA_tanb}
%The top hatched area indicates the excluded side
%of the line, and the shared area indicates the LEP limits.
\end{figure}

%\begin{figure}\centering
%\includegraphics[width=3in]{eps_p14/mh_tanb_future.eps}
%\caption{Extrapolation of the expected 95\% C.L. upper limits on
%\tanb\ in MSSM parameter space, with various integrated luminosities
%collected (in \ipb).} \label{fig:mh_tanb_future}
%\end{figure}

We thank the authors of Refs.~\cite{5fns,top_NLO,tev} for valuable
discussions. \input acknowledgement_paragraph_r2.tex   % input acknowledgement

\begin{thebibliography}{99}

\input list_of_visitor_addresses_r2.tex  % input visitors address

\bibitem{2HDM}
H.~P.~Nilles,
%``Supersymmetry, Supergravity And Particle Physics,''
Phys.\ Rept.\  {\bf 110}, 1 (1984);
H.~E.~Haber and G.~L.~Kane,
%``The Search For Supersymmetry: Probing Physics Beyond The Standard Model,''
Phys.\ Rept.\  {\bf 117}, 75 (1985).

\bibitem{MSSM_Higgs}
%The Higgs Working Group: Summary Report (2001), hep-ph/0203056,
%D.Cavalli {\sl et al.}, Published in proceedings of ``Workshop on Physics at TeV Colliders'', pages 10-28.
%``Les Houches 2001, Physics at TeV colliders''
J.~F.~Gunion, H.~E.~Haber, G.~L.~Kane, and S.~Dawson, ``The Higgs
Hunter's Guide,'' Addison-Wesley, 1990.
% Addison-Wesley, Redwood City, 1990.
% SCIPP-89/13, 1989.
%\href{http://www.slac.stanford.edu/spires/find/hep/www?r=scipp-89\%2F13}{SPIRES entry}

\bibitem{leplimit}
The LEP Working Group for Higgs Boson Searches, LHWG-Note 2004-01.
%LEP Higgs Working Group (August 2004), LHWG-Note 2004-01.

\bibitem{cdfrunIlimit}
%CDF Collaboration, T. Affolder {\sl et al.}, Phys. Rev. Lett. {\bf 86}, 4472-4478 (2001).

%Recent theoretical calculations do not reproduce the cross sections
%and kinematics used by CDF Collaboration in Phys. Rev. Lett. {\bf
%86}, 4472 (2001).

Results in Phys. Rev. Lett. {\bf 86}, 4472 (2001) by the CDF
Collaboration cannot be confirmed with our data. In addition, their
analysis used PDFs that have been superseded, resulting in more
stringent limits than would have been obtained with the more recent
PDFs used in this analysis.

\bibitem{5fns}
J.~Campbell, R.~K.~Ellis, F.~Maltoni, and S.~Willenbrock,
%``Higgs boson production in association with a single bottom quark,''
Phys.\ Rev.\ D~{\bf 67}, 095002 (2003).

\bibitem{4fns}
S.~Dawson, C.~B.~Jackson, L.~Reina, and D.~Wackeroth,
Phys.\ Rev.\ D~{\bf 69}, 074027 (2004);
S.~Dittmaier, M.~Kr{\"a}mer, and M.~Spira,
%``Higgs radiation off bottom quarks at the Tevatron and the LHC,''
Phys.\ Rev.\ D~{\bf 70}, 074010 (2004).
%[arXiv:hep-ph/0309204].

\bibitem{bh_NLO}
%K.A. Assamagan {\sl et al.}, Published in ``Les Houches 2003, Physics at TeV colliders'',
%hep-ph/0406152 ;
J.~Campbell {\sl et al.}, hep-ph/0405302.

\bibitem{top_NLO}
S.~Dawson, C.~B.~Jackson, L.~Reina, and D.~Wackeroth, Phys.\ Rev.\
Lett. {\bf 94}, 031802 (2005).
%``Higgs boson production in association with bottom quarks,''

%\bibitem{hdecay}
%A. Djouadi, J. Kalinowski and M. Spira, Computer Phys. Commun. {\bf 108} (1998) 56-74.
%M. Spira, ``HDECAY'', hep-ph/9704448,
%http://people.web.psi.ch/spira/hdecay/.

\bibitem{cpsuperh}
J.~S.~Lee {\sl et al.},
Comp.\ Phys.\ Comm.\  {\bf 156}, 283 (2004).
%Comput.\ Phys.\ Commun.\  {\bf 156}, 283 (2004).
%J.~S.~Lee, A.~Pilaftsis, M.~Carena, S.~Y.~Choi, M.~Drees, J.~R.~Ellis and C.~E.~M.~Wagner,
%``CPsuperH: A computational tool for Higgs phenomenology in the minimal
%supersymmetric standard model with explicit CP violation,''
%[arXiv:hep-ph/0307377].

\bibitem{carena}
M.~Carena and H.~E.~Haber,
%``Higgs boson theory and phenomenology. ((V)),''
Prog.\ Part.\ Nucl.\ Phys.\  {\bf 50}, 63 (2003).
%[arXiv:hep-ph/0208209].

\bibitem{boos}
E.~Boos, A.~Djouadi, M.~M{\"u}hlleitner, and A.~Vologdin,
%``The MSSM Higgs bosons in the intense-coupling regime,''
Phys.\ Rev.\ D~{\bf 66}, 055004 (2002).
%[arXiv:hep-ph/0205160].

\bibitem{run2det} D\O\ Collaboration, V.~Abazov {\sl et al.}, in preparation for submission to
Nucl. Instrum. Methods Phys. Res. A.

\bibitem{run1det} D\O\ Collaboration, S.~Abachi {\sl et al.}, Nucl.
Instrum. Methods Phys. Res. A~{\bf 338}, 185 (1994).

\bibitem{RunIIcone}
G.~C.~Blazey {\sl et al.}, in
     {\sl Proceedings of the Workshop:
     ``QCD and Weak Boson Physics in Run II,''}
     edited by U.~Baur, R.~K.~Ellis, and D.~Zeppenfeld,
     (Fermilab, Batavia, IL, 2000) p.~47;
     see Sec. 3.5 for details.
%G. Blazey {\sl et al.}, ``Run~II Jet Physics: Proceedings of the Run~II
%QCD and Weak Boson Physics Workshop'', hep-ex/0005012.

\bibitem{pythia}
T.~Sj{\"o}strand {\sl et al.},
Comp.\ Phys.\ Comm.\  {\bf 135}, 238 (2001).
%T.~Sjostrand, P.~Eden, C.~Friberg, L.~Lonnblad, G.~Miu, S.~Mrenna and E.~Norrbin,
%``High-energy-physics event generation with PYTHIA 6.1,''
%Comput.\ Phys.\ Commun.\  {\bf 135}, 238 (2001).
%[arXiv:hep-ph/0010017].
%Computer Phys. Commun. 135 (2001) 238. (LU TP 00-30,hep-ph/0010017).

\bibitem{alpgen}
M.~L.~Mangano {\sl et al.},
%M.~Moretti, F.~Piccinini, R.~Pittau and A.~D.~Polosa,
%``ALPGEN, a generator for hard multiparton processes in hadronic
%collisions,''
JHEP {\bf 0307}, 001 (2003).
%[arXiv:hep-ph/0206293].

\bibitem{Zb_NLO}
J.~Campbell, R.~K.~Ellis, F.~Maltoni, and S.~Willenbrock,
%``Associated production of a Z boson and a single heavy-quark jet,''
Phys.\ Rev.\ D~{\bf 69}, 074021 (2004).
%[arXiv:hep-ph/0312024].

\bibitem{madgraph}
F.~Maltoni and T.~Stelzer,
%``MadEvent: Automatic event generation with MadGraph,''
JHEP {\bf 0302}, 027 (2003).
%[arXiv:hep-ph/0208156].

%\bibitem{mctuning}
%A. Annovi, P. Giannetti, ``B Production in Multijet Events'', Matrix
%Element/MC Tuning Workshop, Fermilab, Oct. 4, 2002,
%http://cepa.fnal.gov/CPD/MCTuning/event\_gen\_2002.pdf.

\bibitem{mclimit}
T.~Junk, Nucl. Instrum. Methods Phys. Res. A~{\bf 434}, 435 (1999).
%T. Junk, ``Confidence Level Computation for Combining Searches with
%Small Statistics'', Nucl.Instrum.Meth. A434 (1999) 435-443, hep-ex/9902006.

\bibitem{tev}
M.~Carena, S.~Mrenna, and C.~E.~M.~Wagner,
%``MSSM Higgs boson phenomenology at the Tevatron collider,''
Phys.\ Rev.\ D~{\bf 60}, 075010 (1999);
%[arXiv:hep-ph/9808312].
%``The complementarity of LEP, the Tevatron and the LHC in the search for  a
%light MSSM Higgs boson,''
ibid, D~{\bf 62}, 055008 (2000).
%[arXiv:hep-ph/9907422].

%\bibitem{root}
%ROOT, TLimit classes from v4\_00\_03a were used.

\end{thebibliography}

\end{document}
% LocalWords:  Kharchilava multijet TeV Fermilab Tevatron Collider MSSM CP LEP
% LocalWords:  colliders CDF NLO CPsuperH di microstrip SMT CFT vertexing GeV
% LocalWords:  pseudorapidities cryostats hadronic SV mis pythia parton alpgen
% LocalWords:  partons pb madgraph ccccc PDF tri Higgsino supersymmetric Higgs
% LocalWords:  gluons nb sd dof

definitions.tex
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%%% D0 and the physics analyses related stuff:
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%
% Triggers:
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%
% D0 General
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\newcommand{\nj}{\mbox{$n_{j}$}}
\newcommand{\ptrel}{\mbox{$p_{T}^{rel}$}}
\newcommand{\etad}{\mbox{$\eta_{d}$}}           %% detector eta
\newcommand{\peta}{\mbox{$\eta$}}               %% physics eta
\newcommand{\aeta}{\mbox{$|\eta|$}}             %% absolute eta
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\newcommand{\inb}{nb$^{-1}$}
%%\newcommand{\met}{\mbox{${\hbox{$E$\kern-0.6em\lower-.1ex\hbox{/}}}_T$ }}
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%%\newcommand{\dzero}{D\O}
%\newcommand{\metvec}{\mbox{\vec{\met}}}
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\newcommand{\hetsc}{\mbox{$\mathcal{H}_{T}$}}
%\newcommand{\zvrt}{\mbox{Z_{\subs{vtx}}}}
%\newcommand{\zcut}{\mbox{|\zvrt| < 50}}
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%%\newcommand{\delphi}{\mbox{\Delta\phi}}
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%\newcommand{\Rjj}{\mbox{\mathcal{R}_{\subs{jj}}}}
% for thesis use this instead:
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% for thesis, use this instead.
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%
% JES:
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%%
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%%
\newcommand{\tanb}{$\tan\beta$}
\newcommand{\cotb}{$\cot\beta$}
%%

% Inclusive Definitions
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% units
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%\newcommand{\ipb}{\mbox{$pb^{-1}$}}
%\newcommand{\inb}{\mbox{$nb^{-1}$}}
\newcommand{\rs}{\mbox{$\sqrt{\rm {\sl s}}$}}
\newcommand{\fdel}{\mbox{$f(\DEP)$}}
\newcommand{\fdele}{\mbox{$f(\DEP)^{exp}$}}
\newcommand{\fgap}{\mbox{$f(\DEP\! \geq \!3)$}}
\newcommand{\fgape}{\mbox{$f(\DEP\! \geq \!3)^{exp}$}}
\newcommand{\fpyt}{\mbox{$f(\DEP\!>\!2)$}}
\newcommand{\delth}{\mbox{$\DEP\! \geq \!3$}}
\newcommand{\uplim}{\mbox{$1.1\!\times\!10^{-2}$}}
\def\simge
{\mathrel{\rlap{\raise 0.53ex \hbox{$>$}}{\lower 0.53ex \hbox{$\sim$}}}}
\def\simle
{\mathrel{\rlap{\raise 0.53ex \hbox{$<$}}{\lower 0.53ex \hbox{$\sim$}}}}
% End Inclusive Definitions
%%
\newcommand{\pbarp}{\mbox{$p\bar{p}$}}
\def\ETmiss{\mbox{${\hbox{$E$\kern-0.5em\lower-.1ex\hbox{/}\kern+0.15em}}_{\rm T}$}}
\def\Et{\mbox{$E_{T}$}}
%\newcommand{\modeta}{\mbox{$\mid \! \eta  \! \mid$}}
%\newcommand{\modeta}{\mid \! \eta  \! \mid}
\newcommand{\modeta}{\mid \!\! \eta \!\! \mid}
\def\gevcc{GeV/c$^2$}                   %GeV/c^2
\def\gevc{GeV/c}                        %GeV/c
\def\gev{GeV}                           %GeV
\newcommand{\als}{\mbox{${\alpha_{{\rm s}}}$}}
\def\1960{$\sqrt{s}=1960$ GeV}
\def\etI{E_{T_1}}
\def\etII{E_{T_2}}
\def\itaI{\eta_1}
\def\itaII{\eta_2}
\def\deta{\Delta\eta}
\def\etab{\bar{\eta}}
\def\xq{($x_1$,$x_2$,$Q^2$)}
\def\xx{($x_1$,$x_2$)}
\def\rap{pseudorapidity}
\def\as{\alpha_s}
\def\ap{\alpha_{\rm BFKL}}
\def\apb{\alpha_{{\rm BFKL}_{bin}}}
\def\cm{c.m.}
%%

list_of_authors_r2.tex
% LIST_OF_AUTHORS_R2.TEX                 4/8/05             
%
\author{                                                                      
%% names begin here                                                           
V.M.~Abazov,$^{35}$                                                           
B.~Abbott,$^{72}$                                                             
M.~Abolins,$^{63}$                                                            
B.S.~Acharya,$^{29}$                                                          
M.~Adams,$^{50}$                                                              
T.~Adams,$^{48}$                                                              
M.~Agelou,$^{18}$                                                             
J.-L.~Agram,$^{19}$                                                           
S.H.~Ahn,$^{31}$                                                              
M.~Ahsan,$^{57}$                                                              
G.D.~Alexeev,$^{35}$                                                          
G.~Alkhazov,$^{39}$                                                           
A.~Alton,$^{62}$                                                              
G.~Alverson,$^{61}$                                                           
G.A.~Alves,$^{2}$                                                             
M.~Anastasoaie,$^{34}$                                                        
T.~Andeen,$^{52}$                                                             
S.~Anderson,$^{44}$                                                           
B.~Andrieu,$^{17}$                                                            
Y.~Arnoud,$^{14}$                                                             
A.~Askew,$^{48}$                                                              
B.~{\AA}sman,$^{40}$                                                          
A.C.S.~Assis~Jesus,$^{3}$                                                     
O.~Atramentov,$^{55}$                                                         
C.~Autermann,$^{21}$                                                          
C.~Avila,$^{8}$                                                               
F.~Badaud,$^{13}$                                                             
A.~Baden,$^{59}$                                                              
B.~Baldin,$^{49}$                                                             
P.W.~Balm,$^{33}$                                                             
S.~Banerjee,$^{29}$                                                           
E.~Barberis,$^{61}$                                                           
P.~Bargassa,$^{76}$                                                           
P.~Baringer,$^{56}$                                                           
C.~Barnes,$^{42}$                                                             
J.~Barreto,$^{2}$                                                             
J.F.~Bartlett,$^{49}$                                                         
U.~Bassler,$^{17}$                                                            
D.~Bauer,$^{53}$                                                              
A.~Bean,$^{56}$                                                               
S.~Beauceron,$^{17}$                                                          
M.~Begel,$^{68}$                                                              
A.~Bellavance,$^{65}$                                                         
S.B.~Beri,$^{27}$                                                             
G.~Bernardi,$^{17}$                                                           
R.~Bernhard,$^{49,*}$                                                         
I.~Bertram,$^{41}$                                                            
M.~Besan\c{c}on,$^{18}$                                                       
R.~Beuselinck,$^{42}$                                                         
V.A.~Bezzubov,$^{38}$                                                         
P.C.~Bhat,$^{49}$                                                             
V.~Bhatnagar,$^{27}$                                                          
M.~Binder,$^{25}$                                                             
C.~Biscarat,$^{41}$                                                           
K.M.~Black,$^{60}$                                                            
I.~Blackler,$^{42}$                                                           
G.~Blazey,$^{51}$                                                             
F.~Blekman,$^{33}$                                                            
S.~Blessing,$^{48}$                                                           
D.~Bloch,$^{19}$                                                              
U.~Blumenschein,$^{23}$                                                       
A.~Boehnlein,$^{49}$                                                          
O.~Boeriu,$^{54}$                                                             
T.A.~Bolton,$^{57}$                                                           
F.~Borcherding,$^{49}$                                                        
G.~Borissov,$^{41}$                                                           
K.~Bos,$^{33}$                                                                
T.~Bose,$^{67}$                                                               
A.~Brandt,$^{74}$                                                             
R.~Brock,$^{63}$                                                              
G.~Brooijmans,$^{67}$                                                         
A.~Bross,$^{49}$                                                              
N.J.~Buchanan,$^{48}$                                                         
D.~Buchholz,$^{52}$                                                           
M.~Buehler,$^{50}$                                                            
V.~Buescher,$^{23}$                                                           
S.~Burdin,$^{49}$                                                             
T.H.~Burnett,$^{78}$                                                          
E.~Busato,$^{17}$                                                             
C.P.~Buszello,$^{42}$                                                         
J.M.~Butler,$^{60}$                                                           
J.~Cammin,$^{68}$                                                             
S.~Caron,$^{33}$                                                              
W.~Carvalho,$^{3}$                                                            
B.C.K.~Casey,$^{73}$                                                          
N.M.~Cason,$^{54}$                                                            
H.~Castilla-Valdez,$^{32}$                                                    
S.~Chakrabarti,$^{29}$                                                        
D.~Chakraborty,$^{51}$                                                        
K.M.~Chan,$^{68}$                                                             
A.~Chandra,$^{29}$                                                            
D.~Chapin,$^{73}$                                                             
F.~Charles,$^{19}$                                                            
E.~Cheu,$^{44}$                                                               
D.K.~Cho,$^{60}$                                                              
S.~Choi,$^{47}$                                                               
B.~Choudhary,$^{28}$                                                          
T.~Christiansen,$^{25}$                                                       
L.~Christofek,$^{56}$                                                         
D.~Claes,$^{65}$                                                              
B.~Cl\'ement,$^{19}$                                                          
C.~Cl\'ement,$^{40}$                                                          
Y.~Coadou,$^{5}$                                                              
M.~Cooke,$^{76}$                                                              
W.E.~Cooper,$^{49}$                                                           
D.~Coppage,$^{56}$                                                            
M.~Corcoran,$^{76}$                                                           
A.~Cothenet,$^{15}$                                                           
M.-C.~Cousinou,$^{15}$                                                        
B.~Cox,$^{43}$                                                                
S.~Cr\'ep\'e-Renaudin,$^{14}$                                                 
D.~Cutts,$^{73}$                                                              
H.~da~Motta,$^{2}$                                                            
B.~Davies,$^{41}$                                                             
G.~Davies,$^{42}$                                                             
G.A.~Davis,$^{52}$                                                            
K.~De,$^{74}$                                                                 
P.~de~Jong,$^{33}$                                                            
S.J.~de~Jong,$^{34}$                                                          
E.~De~La~Cruz-Burelo,$^{32}$                                                  
C.~De~Oliveira~Martins,$^{3}$                                                 
S.~Dean,$^{43}$                                                               
J.D.~Degenhardt,$^{62}$                                                       
F.~D\'eliot,$^{18}$                                                           
M.~Demarteau,$^{49}$                                                          
R.~Demina,$^{68}$                                                             
P.~Demine,$^{18}$                                                             
D.~Denisov,$^{49}$                                                            
S.P.~Denisov,$^{38}$                                                          
S.~Desai,$^{69}$                                                              
H.T.~Diehl,$^{49}$                                                            
M.~Diesburg,$^{49}$                                                           
M.~Doidge,$^{41}$                                                             
H.~Dong,$^{69}$                                                               
S.~Doulas,$^{61}$                                                             
L.V.~Dudko,$^{37}$                                                            
L.~Duflot,$^{16}$                                                             
S.R.~Dugad,$^{29}$                                                            
A.~Duperrin,$^{15}$                                                           
J.~Dyer,$^{63}$                                                               
A.~Dyshkant,$^{51}$                                                           
M.~Eads,$^{51}$                                                               
D.~Edmunds,$^{63}$                                                            
T.~Edwards,$^{43}$                                                            
J.~Ellison,$^{47}$                                                            
J.~Elmsheuser,$^{25}$                                                         
V.D.~Elvira,$^{49}$                                                           
S.~Eno,$^{59}$                                                                
P.~Ermolov,$^{37}$                                                            
O.V.~Eroshin,$^{38}$                                                          
J.~Estrada,$^{49}$                                                            
H.~Evans,$^{67}$                                                              
A.~Evdokimov,$^{36}$                                                          
V.N.~Evdokimov,$^{38}$                                                        
J.~Fast,$^{49}$                                                               
S.N.~Fatakia,$^{60}$                                                          
L.~Feligioni,$^{60}$                                                          
A.V.~Ferapontov,$^{38}$                                                       
T.~Ferbel,$^{68}$                                                             
F.~Fiedler,$^{25}$                                                            
F.~Filthaut,$^{34}$                                                           
W.~Fisher,$^{66}$                                                             
H.E.~Fisk,$^{49}$                                                             
I.~Fleck,$^{23}$                                                              
M.~Fortner,$^{51}$                                                            
H.~Fox,$^{23}$                                                                
S.~Fu,$^{49}$                                                                 
S.~Fuess,$^{49}$                                                              
T.~Gadfort,$^{78}$                                                            
C.F.~Galea,$^{34}$                                                            
E.~Gallas,$^{49}$                                                             
E.~Galyaev,$^{54}$                                                            
C.~Garcia,$^{68}$                                                             
A.~Garcia-Bellido,$^{78}$                                                     
J.~Gardner,$^{56}$                                                            
V.~Gavrilov,$^{36}$                                                           
P.~Gay,$^{13}$                                                                
D.~Gel\'e,$^{19}$                                                             
R.~Gelhaus,$^{47}$                                                            
K.~Genser,$^{49}$                                                             
C.E.~Gerber,$^{50}$                                                           
Y.~Gershtein,$^{48}$                                                          
D.~Gillberg,$^{5}$                                                            
G.~Ginther,$^{68}$                                                            
T.~Golling,$^{22}$                                                            
N.~Gollub,$^{40}$                                                             
B.~G\'{o}mez,$^{8}$                                                           
K.~Gounder,$^{49}$                                                            
A.~Goussiou,$^{54}$                                                           
P.D.~Grannis,$^{69}$                                                          
S.~Greder,$^{3}$                                                              
H.~Greenlee,$^{49}$                                                           
Z.D.~Greenwood,$^{58}$                                                        
E.M.~Gregores,$^{4}$                                                          
Ph.~Gris,$^{13}$                                                              
J.-F.~Grivaz,$^{16}$                                                          
L.~Groer,$^{67}$                                                              
S.~Gr\"unendahl,$^{49}$                                                       
M.W.~Gr{\"u}newald,$^{30}$                                                    
S.N.~Gurzhiev,$^{38}$                                                         
G.~Gutierrez,$^{49}$                                                          
P.~Gutierrez,$^{72}$                                                          
A.~Haas,$^{67}$                                                               
N.J.~Hadley,$^{59}$                                                           
S.~Hagopian,$^{48}$                                                           
I.~Hall,$^{72}$                                                               
R.E.~Hall,$^{46}$                                                             
C.~Han,$^{62}$                                                                
L.~Han,$^{7}$                                                                 
K.~Hanagaki,$^{49}$                                                           
K.~Harder,$^{57}$                                                             
A.~Harel,$^{26}$                                                              
R.~Harrington,$^{61}$                                                         
J.M.~Hauptman,$^{55}$                                                         
R.~Hauser,$^{63}$                                                             
J.~Hays,$^{52}$                                                               
T.~Hebbeker,$^{21}$                                                           
D.~Hedin,$^{51}$                                                              
J.M.~Heinmiller,$^{50}$                                                       
A.P.~Heinson,$^{47}$                                                          
U.~Heintz,$^{60}$                                                             
C.~Hensel,$^{56}$                                                             
G.~Hesketh,$^{61}$                                                            
M.D.~Hildreth,$^{54}$                                                         
R.~Hirosky,$^{77}$                                                            
J.D.~Hobbs,$^{69}$                                                            
B.~Hoeneisen,$^{12}$                                                          
M.~Hohlfeld,$^{24}$                                                           
S.J.~Hong,$^{31}$                                                             
R.~Hooper,$^{73}$                                                             
P.~Houben,$^{33}$                                                             
Y.~Hu,$^{69}$                                                                 
J.~Huang,$^{53}$                                                              
V.~Hynek,$^{9}$                                                               
I.~Iashvili,$^{47}$                                                           
R.~Illingworth,$^{49}$                                                        
A.S.~Ito,$^{49}$                                                              
S.~Jabeen,$^{56}$                                                             
M.~Jaffr\'e,$^{16}$                                                           
S.~Jain,$^{72}$                                                               
V.~Jain,$^{70}$                                                               
K.~Jakobs,$^{23}$                                                             
A.~Jenkins,$^{42}$                                                            
R.~Jesik,$^{42}$                                                              
K.~Johns,$^{44}$                                                              
M.~Johnson,$^{49}$                                                            
A.~Jonckheere,$^{49}$                                                         
P.~Jonsson,$^{42}$                                                            
A.~Juste,$^{49}$                                                              
D.~K\"afer,$^{21}$                                                            
S.~Kahn,$^{70}$                                                               
E.~Kajfasz,$^{15}$                                                            
A.M.~Kalinin,$^{35}$                                                          
J.~Kalk,$^{63}$                                                               
D.~Karmanov,$^{37}$                                                           
J.~Kasper,$^{60}$                                                             
D.~Kau,$^{48}$                                                                
R.~Kaur,$^{27}$                                                               
R.~Kehoe,$^{75}$                                                              
S.~Kermiche,$^{15}$                                                           
S.~Kesisoglou,$^{73}$                                                         
A.~Khanov,$^{68}$                                                             
A.~Kharchilava,$^{54}$                                                        
Y.M.~Kharzheev,$^{35}$                                                        
H.~Kim,$^{74}$                                                                
T.J.~Kim,$^{31}$                                                              
B.~Klima,$^{49}$                                                              
J.M.~Kohli,$^{27}$                                                            
M.~Kopal,$^{72}$                                                              
V.M.~Korablev,$^{38}$                                                         
J.~Kotcher,$^{70}$                                                            
B.~Kothari,$^{67}$                                                            
A.~Koubarovsky,$^{37}$                                                        
A.V.~Kozelov,$^{38}$                                                          
J.~Kozminski,$^{63}$                                                          
A.~Kryemadhi,$^{77}$                                                          
S.~Krzywdzinski,$^{49}$                                                       
Y.~Kulik,$^{49}$                                                              
A.~Kumar,$^{28}$                                                              
S.~Kunori,$^{59}$                                                             
A.~Kupco,$^{11}$                                                              
T.~Kur\v{c}a,$^{20}$                                                          
J.~Kvita,$^{9}$                                                               
S.~Lager,$^{40}$                                                              
N.~Lahrichi,$^{18}$                                                           
G.~Landsberg,$^{73}$                                                          
J.~Lazoflores,$^{48}$                                                         
A.-C.~Le~Bihan,$^{19}$                                                        
P.~Lebrun,$^{20}$                                                             
W.M.~Lee,$^{48}$                                                              
A.~Leflat,$^{37}$                                                             
F.~Lehner,$^{49,*}$                                                           
C.~Leonidopoulos,$^{67}$                                                      
J.~Leveque,$^{44}$                                                            
P.~Lewis,$^{42}$                                                              
J.~Li,$^{74}$                                                                 
Q.Z.~Li,$^{49}$                                                               
J.G.R.~Lima,$^{51}$                                                           
D.~Lincoln,$^{49}$                                                            
S.L.~Linn,$^{48}$                                                             
J.~Linnemann,$^{63}$                                                          
V.V.~Lipaev,$^{38}$                                                           
R.~Lipton,$^{49}$                                                             
L.~Lobo,$^{42}$                                                               
A.~Lobodenko,$^{39}$                                                          
M.~Lokajicek,$^{11}$                                                          
A.~Lounis,$^{19}$                                                             
P.~Love,$^{41}$                                                               
H.J.~Lubatti,$^{78}$                                                          
L.~Lueking,$^{49}$                                                            
M.~Lynker,$^{54}$                                                             
A.L.~Lyon,$^{49}$                                                             
A.K.A.~Maciel,$^{51}$                                                         
R.J.~Madaras,$^{45}$                                                          
P.~M\"attig,$^{26}$                                                           
C.~Magass,$^{21}$                                                             
A.~Magerkurth,$^{62}$                                                         
A.-M.~Magnan,$^{14}$                                                          
N.~Makovec,$^{16}$                                                            
P.K.~Mal,$^{29}$                                                              
H.B.~Malbouisson,$^{3}$                                                       
S.~Malik,$^{58}$                                                              
V.L.~Malyshev,$^{35}$                                                         
H.S.~Mao,$^{6}$                                                               
Y.~Maravin,$^{49}$                                                            
M.~Martens,$^{49}$                                                            
S.E.K.~Mattingly,$^{73}$                                                      
A.A.~Mayorov,$^{38}$                                                          
R.~McCarthy,$^{69}$                                                           
R.~McCroskey,$^{44}$                                                          
D.~Meder,$^{24}$                                                              
A.~Melnitchouk,$^{64}$                                                        
A.~Mendes,$^{15}$                                                             
M.~Merkin,$^{37}$                                                             
K.W.~Merritt,$^{49}$                                                          
A.~Meyer,$^{21}$                                                              
J.~Meyer,$^{22}$                                                              
M.~Michaut,$^{18}$                                                            
H.~Miettinen,$^{76}$                                                          
J.~Mitrevski,$^{67}$                                                          
J.~Molina,$^{3}$                                                              
N.K.~Mondal,$^{29}$                                                           
R.W.~Moore,$^{5}$                                                             
G.S.~Muanza,$^{20}$                                                           
M.~Mulders,$^{49}$                                                            
Y.D.~Mutaf,$^{69}$                                                            
E.~Nagy,$^{15}$                                                               
M.~Narain,$^{60}$                                                             
N.A.~Naumann,$^{34}$                                                          
H.A.~Neal,$^{62}$                                                             
J.P.~Negret,$^{8}$                                                            
S.~Nelson,$^{48}$                                                             
P.~Neustroev,$^{39}$                                                          
C.~Noeding,$^{23}$                                                            
A.~Nomerotski,$^{49}$                                                         
S.F.~Novaes,$^{4}$                                                            
T.~Nunnemann,$^{25}$                                                          
E.~Nurse,$^{43}$                                                              
V.~O'Dell,$^{49}$                                                             
D.C.~O'Neil,$^{5}$                                                            
V.~Oguri,$^{3}$                                                               
N.~Oliveira,$^{3}$                                                            
N.~Oshima,$^{49}$                                                             
G.J.~Otero~y~Garz{\'o}n,$^{50}$                                               
P.~Padley,$^{76}$                                                             
N.~Parashar,$^{58}$                                                           
S.K.~Park,$^{31}$                                                             
J.~Parsons,$^{67}$                                                            
R.~Partridge,$^{73}$                                                          
N.~Parua,$^{69}$                                                              
A.~Patwa,$^{70}$                                                              
G.~Pawloski,$^{76}$                                                           
P.M.~Perea,$^{47}$                                                            
E.~Perez,$^{18}$                                                              
P.~P\'etroff,$^{16}$                                                          
M.~Petteni,$^{42}$                                                            
R.~Piegaia,$^{1}$                                                             
M.-A.~Pleier,$^{68}$                                                          
P.L.M.~Podesta-Lerma,$^{32}$                                                  
V.M.~Podstavkov,$^{49}$                                                       
Y.~Pogorelov,$^{54}$                                                          
A.~Pompo\v s,$^{72}$                                                          
B.G.~Pope,$^{63}$                                                             
W.L.~Prado~da~Silva,$^{3}$                                                    
H.B.~Prosper,$^{48}$                                                          
S.~Protopopescu,$^{70}$                                                       
J.~Qian,$^{62}$                                                               
A.~Quadt,$^{22}$                                                              
B.~Quinn,$^{64}$                                                              
K.J.~Rani,$^{29}$                                                             
K.~Ranjan,$^{28}$                                                             
P.A.~Rapidis,$^{49}$                                                          
P.N.~Ratoff,$^{41}$                                                           
S.~Reucroft,$^{61}$                                                           
M.~Rijssenbeek,$^{69}$                                                        
I.~Ripp-Baudot,$^{19}$                                                        
F.~Rizatdinova,$^{57}$                                                        
S.~Robinson,$^{42}$                                                           
R.F.~Rodrigues,$^{3}$                                                         
C.~Royon,$^{18}$                                                              
P.~Rubinov,$^{49}$                                                            
R.~Ruchti,$^{54}$                                                             
V.I.~Rud,$^{37}$                                                              
G.~Sajot,$^{14}$                                                              
A.~S\'anchez-Hern\'andez,$^{32}$                                              
M.P.~Sanders,$^{59}$                                                          
A.~Santoro,$^{3}$                                                             
G.~Savage,$^{49}$                                                             
L.~Sawyer,$^{58}$                                                             
T.~Scanlon,$^{42}$                                                            
D.~Schaile,$^{25}$                                                            
R.D.~Schamberger,$^{69}$                                                      
H.~Schellman,$^{52}$                                                          
P.~Schieferdecker,$^{25}$                                                     
C.~Schmitt,$^{26}$                                                            
C.~Schwanenberger,$^{22}$                                                     
A.~Schwartzman,$^{66}$                                                        
R.~Schwienhorst,$^{63}$                                                       
S.~Sengupta,$^{48}$                                                           
H.~Severini,$^{72}$                                                           
E.~Shabalina,$^{50}$                                                          
M.~Shamim,$^{57}$                                                             
V.~Shary,$^{18}$                                                              
A.A.~Shchukin,$^{38}$                                                         
W.D.~Shephard,$^{54}$                                                         
R.K.~Shivpuri,$^{28}$                                                         
D.~Shpakov,$^{61}$                                                            
R.A.~Sidwell,$^{57}$                                                          
V.~Simak,$^{10}$                                                              
V.~Sirotenko,$^{49}$                                                          
P.~Skubic,$^{72}$                                                             
P.~Slattery,$^{68}$                                                           
R.P.~Smith,$^{49}$                                                            
K.~Smolek,$^{10}$                                                             
G.R.~Snow,$^{65}$                                                             
J.~Snow,$^{71}$                                                               
S.~Snyder,$^{70}$                                                             
S.~S{\"o}ldner-Rembold,$^{43}$                                                
X.~Song,$^{51}$                                                               
L.~Sonnenschein,$^{17}$                                                       
A.~Sopczak,$^{41}$                                                            
M.~Sosebee,$^{74}$                                                            
K.~Soustruznik,$^{9}$                                                         
M.~Souza,$^{2}$                                                               
B.~Spurlock,$^{74}$                                                           
N.R.~Stanton,$^{57}$                                                          
J.~Stark,$^{14}$                                                              
J.~Steele,$^{58}$                                                             
K.~Stevenson,$^{53}$                                                          
V.~Stolin,$^{36}$                                                             
A.~Stone,$^{50}$                                                              
D.A.~Stoyanova,$^{38}$                                                        
J.~Strandberg,$^{40}$                                                         
M.A.~Strang,$^{74}$                                                           
M.~Strauss,$^{72}$                                                            
R.~Str{\"o}hmer,$^{25}$                                                       
D.~Strom,$^{52}$                                                              
M.~Strovink,$^{45}$                                                           
L.~Stutte,$^{49}$                                                             
S.~Sumowidagdo,$^{48}$                                                        
A.~Sznajder,$^{3}$                                                            
M.~Talby,$^{15}$                                                              
P.~Tamburello,$^{44}$                                                         
W.~Taylor,$^{5}$                                                              
P.~Telford,$^{43}$                                                            
J.~Temple,$^{44}$                                                             
M.~Tomoto,$^{49}$                                                             
T.~Toole,$^{59}$                                                              
J.~Torborg,$^{54}$                                                            
S.~Towers,$^{69}$                                                             
T.~Trefzger,$^{24}$                                                           
S.~Trincaz-Duvoid,$^{17}$                                                     
B.~Tuchming,$^{18}$                                                           
C.~Tully,$^{66}$                                                              
A.S.~Turcot,$^{43}$                                                           
P.M.~Tuts,$^{67}$                                                             
L.~Uvarov,$^{39}$                                                             
S.~Uvarov,$^{39}$                                                             
S.~Uzunyan,$^{51}$                                                            
B.~Vachon,$^{5}$                                                              
R.~Van~Kooten,$^{53}$                                                         
W.M.~van~Leeuwen,$^{33}$                                                      
N.~Varelas,$^{50}$                                                            
E.W.~Varnes,$^{44}$                                                           
A.~Vartapetian,$^{74}$                                                        
I.A.~Vasilyev,$^{38}$                                                         
M.~Vaupel,$^{26}$                                                             
P.~Verdier,$^{20}$                                                            
L.S.~Vertogradov,$^{35}$                                                      
M.~Verzocchi,$^{59}$                                                          
F.~Villeneuve-Seguier,$^{42}$                                                 
J.-R.~Vlimant,$^{17}$                                                         
E.~Von~Toerne,$^{57}$                                                         
M.~Vreeswijk,$^{33}$                                                          
T.~Vu~Anh,$^{16}$                                                             
H.D.~Wahl,$^{48}$                                                             
L.~Wang,$^{59}$                                                               
J.~Warchol,$^{54}$                                                            
G.~Watts,$^{78}$                                                              
M.~Wayne,$^{54}$                                                              
M.~Weber,$^{49}$                                                              
H.~Weerts,$^{63}$                                                             
M.~Wegner,$^{21}$                                                             
N.~Wermes,$^{22}$                                                             
A.~White,$^{74}$                                                              
V.~White,$^{49}$                                                              
D.~Wicke,$^{49}$                                                              
D.A.~Wijngaarden,$^{34}$                                                      
G.W.~Wilson,$^{56}$                                                           
S.J.~Wimpenny,$^{47}$                                                         
J.~Wittlin,$^{60}$                                                            
M.~Wobisch,$^{49}$                                                            
J.~Womersley,$^{49}$                                                          
D.R.~Wood,$^{61}$                                                             
T.R.~Wyatt,$^{43}$                                                            
Q.~Xu,$^{62}$                                                                 
N.~Xuan,$^{54}$                                                               
S.~Yacoob,$^{52}$                                                             
R.~Yamada,$^{49}$                                                             
M.~Yan,$^{59}$                                                                
T.~Yasuda,$^{49}$                                                             
Y.A.~Yatsunenko,$^{35}$                                                       
Y.~Yen,$^{26}$                                                                
K.~Yip,$^{70}$                                                                
H.D.~Yoo,$^{73}$                                                              
S.W.~Youn,$^{52}$                                                             
J.~Yu,$^{74}$                                                                 
A.~Yurkewicz,$^{69}$                                                          
A.~Zabi,$^{16}$                                                               
A.~Zatserklyaniy,$^{51}$                                                      
M.~Zdrazil,$^{69}$                                                            
C.~Zeitnitz,$^{24}$                                                           
D.~Zhang,$^{49}$                                                              
X.~Zhang,$^{72}$                                                              
T.~Zhao,$^{78}$                                                               
Z.~Zhao,$^{62}$                                                               
B.~Zhou,$^{62}$                                                               
J.~Zhu,$^{69}$                                                                
M.~Zielinski,$^{68}$                                                          
D.~Zieminska,$^{53}$                                                          
A.~Zieminski,$^{53}$                                                          
R.~Zitoun,$^{69}$                                                             
V.~Zutshi,$^{51}$                                                             
and~E.G.~Zverev$^{37}$                                                        
\\                                                                            
\vskip 0.30cm                                                                 
\centerline{(D\O\ Collaboration)}                                             
\vskip 0.30cm                                                                 
}                                                                             
\affiliation{                                                                 
\centerline{$^{1}$Universidad de Buenos Aires, Buenos Aires, Argentina}       
\centerline{$^{2}$LAFEX, Centro Brasileiro de Pesquisas F{\'\i}sicas,         
                  Rio de Janeiro, Brazil}                                     
\centerline{$^{3}$Universidade do Estado do Rio de Janeiro,                   
                  Rio de Janeiro, Brazil}                                     
\centerline{$^{4}$Instituto de F\'{\i}sica Te\'orica, Universidade            
                  Estadual Paulista, S\~ao Paulo, Brazil}                     
\centerline{$^{5}$University of Alberta, Edmonton, Alberta, Canada,           
               Simon Fraser University, Burnaby, British Columbia, Canada,}   
\centerline{York University, Toronto, Ontario, Canada, and                    
         McGill University, Montreal, Quebec, Canada}                         
\centerline{$^{6}$Institute of High Energy Physics, Beijing,                  
                  People's Republic of China}                                 
\centerline{$^{7}$University of Science and Technology of China, Hefei,       
                  People's Republic of China}                                 
\centerline{$^{8}$Universidad de los Andes, Bogot\'{a}, Colombia}             
\centerline{$^{9}$Center for Particle Physics, Charles University,            
                  Prague, Czech Republic}                                     
\centerline{$^{10}$Czech Technical University, Prague, Czech Republic}        
\centerline{$^{11}$Institute of Physics, Academy of Sciences, Center          
                  for Particle Physics, Prague, Czech Republic}               
\centerline{$^{12}$Universidad San Francisco de Quito, Quito, Ecuador}        
\centerline{$^{13}$Laboratoire de Physique Corpusculaire, IN2P3-CNRS,         
                 Universit\'e Blaise Pascal, Clermont-Ferrand, France}        
\centerline{$^{14}$Laboratoire de Physique Subatomique et de Cosmologie,      
                  IN2P3-CNRS, Universite de Grenoble 1, Grenoble, France}     
\centerline{$^{15}$CPPM, IN2P3-CNRS, Universit\'e de la M\'editerran\'ee,     
                  Marseille, France}                                          
\centerline{$^{16}$Laboratoire de l'Acc\'el\'erateur Lin\'eaire,              
                  IN2P3-CNRS, Orsay, France}                                  
\centerline{$^{17}$LPNHE, IN2P3-CNRS, Universit\'es Paris VI and VII,         
                  Paris, France}                                              
\centerline{$^{18}$DAPNIA/Service de Physique des Particules, CEA, Saclay,    
                  France}                                                     
\centerline{$^{19}$IReS, IN2P3-CNRS, Universit\'e Louis Pasteur, Strasbourg,  
                France, and Universit\'e de Haute Alsace, Mulhouse, France}   
\centerline{$^{20}$Institut de Physique Nucl\'eaire de Lyon, IN2P3-CNRS,      
                   Universit\'e Claude Bernard, Villeurbanne, France}         
\centerline{$^{21}$III. Physikalisches Institut A, RWTH Aachen,               
                   Aachen, Germany}                                           
\centerline{$^{22}$Physikalisches Institut, Universit{\"a}t Bonn,             
                  Bonn, Germany}                                              
\centerline{$^{23}$Physikalisches Institut, Universit{\"a}t Freiburg,         
                  Freiburg, Germany}                                          
\centerline{$^{24}$Institut f{\"u}r Physik, Universit{\"a}t Mainz,            
                  Mainz, Germany}                                             
\centerline{$^{25}$Ludwig-Maximilians-Universit{\"a}t M{\"u}nchen,            
                   M{\"u}nchen, Germany}                                      
\centerline{$^{26}$Fachbereich Physik, University of Wuppertal,               
                   Wuppertal, Germany}                                        
\centerline{$^{27}$Panjab University, Chandigarh, India}                      
\centerline{$^{28}$Delhi University, Delhi, India}                            
\centerline{$^{29}$Tata Institute of Fundamental Research, Mumbai, India}     
\centerline{$^{30}$University College Dublin, Dublin, Ireland}                
\centerline{$^{31}$Korea Detector Laboratory, Korea University,               
                   Seoul, Korea}                                              
\centerline{$^{32}$CINVESTAV, Mexico City, Mexico}                            
\centerline{$^{33}$FOM-Institute NIKHEF and University of                     
                  Amsterdam/NIKHEF, Amsterdam, The Netherlands}               
\centerline{$^{34}$Radboud University Nijmegen/NIKHEF, Nijmegen, The          
                  Netherlands}                                                
\centerline{$^{35}$Joint Institute for Nuclear Research, Dubna, Russia}       
\centerline{$^{36}$Institute for Theoretical and Experimental Physics,        
                  Moscow, Russia}                                             
\centerline{$^{37}$Moscow State University, Moscow, Russia}                   
\centerline{$^{38}$Institute for High Energy Physics, Protvino, Russia}       
\centerline{$^{39}$Petersburg Nuclear Physics Institute,                      
                   St. Petersburg, Russia}                                    
\centerline{$^{40}$Lund University, Lund, Sweden, Royal Institute of          
                   Technology and Stockholm University, Stockholm,            
                   Sweden, and}                                               
\centerline{Uppsala University, Uppsala, Sweden}                              
\centerline{$^{41}$Lancaster University, Lancaster, United Kingdom}           
\centerline{$^{42}$Imperial College, London, United Kingdom}                  
\centerline{$^{43}$University of Manchester, Manchester, United Kingdom}      
\centerline{$^{44}$University of Arizona, Tucson, Arizona 85721, USA}         
\centerline{$^{45}$Lawrence Berkeley National Laboratory and University of    
                  California, Berkeley, California 94720, USA}                
\centerline{$^{46}$California State University, Fresno, California 93740, USA}
\centerline{$^{47}$University of California, Riverside, California 92521, USA}
\centerline{$^{48}$Florida State University, Tallahassee, Florida 32306, USA} 
\centerline{$^{49}$Fermi National Accelerator Laboratory, Batavia,            
                   Illinois 60510, USA}                                       
\centerline{$^{50}$University of Illinois at Chicago, Chicago,                
                   Illinois 60607, USA}                                       
\centerline{$^{51}$Northern Illinois University, DeKalb, Illinois 60115, USA} 
\centerline{$^{52}$Northwestern University, Evanston, Illinois 60208, USA}    
\centerline{$^{53}$Indiana University, Bloomington, Indiana 47405, USA}       
\centerline{$^{54}$University of Notre Dame, Notre Dame, Indiana 46556, USA}  
\centerline{$^{55}$Iowa State University, Ames, Iowa 50011, USA}              
\centerline{$^{56}$University of Kansas, Lawrence, Kansas 66045, USA}         
\centerline{$^{57}$Kansas State University, Manhattan, Kansas 66506, USA}     
\centerline{$^{58}$Louisiana Tech University, Ruston, Louisiana 71272, USA}   
\centerline{$^{59}$University of Maryland, College Park, Maryland 20742, USA} 
\centerline{$^{60}$Boston University, Boston, Massachusetts 02215, USA}       
\centerline{$^{61}$Northeastern University, Boston, Massachusetts 02115, USA} 
\centerline{$^{62}$University of Michigan, Ann Arbor, Michigan 48109, USA}    
\centerline{$^{63}$Michigan State University, East Lansing, Michigan 48824,   
                   USA}                                                       
\centerline{$^{64}$University of Mississippi, University, Mississippi 38677,  
                   USA}                                                       
\centerline{$^{65}$University of Nebraska, Lincoln, Nebraska 68588, USA}      
\centerline{$^{66}$Princeton University, Princeton, New Jersey 08544, USA}    
\centerline{$^{67}$Columbia University, New York, New York 10027, USA}        
\centerline{$^{68}$University of Rochester, Rochester, New York 14627, USA}   
\centerline{$^{69}$State University of New York, Stony Brook,                 
                   New York 11794, USA}                                       
\centerline{$^{70}$Brookhaven National Laboratory, Upton, New York 11973, USA}
\centerline{$^{71}$Langston University, Langston, Oklahoma 73050, USA}        
\centerline{$^{72}$University of Oklahoma, Norman, Oklahoma 73019, USA}       
\centerline{$^{73}$Brown University, Providence, Rhode Island 02912, USA}     
\centerline{$^{74}$University of Texas, Arlington, Texas 76019, USA}          
\centerline{$^{75}$Southern Methodist University, Dallas, Texas 75275, USA}   
\centerline{$^{76}$Rice University, Houston, Texas 77005, USA}                
\centerline{$^{77}$University of Virginia, Charlottesville, Virginia 22901,   
                   USA}                                                       
\centerline{$^{78}$University of Washington, Seattle, Washington 98195, USA}  
}                                                                             
%end                                                                          

list_of_visitor_addresses_r2.tex
% list_of_visitor_addresses_r2.tex                            11/15/04
%
%\bibitem[\dag]{name}
\bibitem[*]{lehner}
Visitor from University of Zurich, Zurich, Switzerland.
%
\vskip 0.25cm

hep-ex0504018.extracted_bib
\begin{thebibliography}{99}

\input list_of_visitor_addresses_r2.tex  % input visitors address

\bibitem{2HDM}
H.~P.~Nilles,
%``Supersymmetry, Supergravity And Particle Physics,''
Phys.\ Rept.\  {\bf 110}, 1 (1984);
H.~E.~Haber and G.~L.~Kane,
%``The Search For Supersymmetry: Probing Physics Beyond The Standard Model,''
Phys.\ Rept.\  {\bf 117}, 75 (1985).

\bibitem{MSSM_Higgs}
%The Higgs Working Group: Summary Report (2001), hep-ph/0203056,
%D.Cavalli {\sl et al.}, Published in proceedings of ``Workshop on Physics at TeV Colliders'', pages 10-28.
%``Les Houches 2001, Physics at TeV colliders''
J.~F.~Gunion, H.~E.~Haber, G.~L.~Kane, and S.~Dawson, ``The Higgs
Hunter's Guide,'' Addison-Wesley, 1990.
% Addison-Wesley, Redwood City, 1990.
% SCIPP-89/13, 1989.
%\href{http://www.slac.stanford.edu/spires/find/hep/www?r=scipp-89\%2F13}{SPIRES entry}

\bibitem{leplimit}
The LEP Working Group for Higgs Boson Searches, LHWG-Note 2004-01.
%LEP Higgs Working Group (August 2004), LHWG-Note 2004-01.

\bibitem{cdfrunIlimit}
%CDF Collaboration, T. Affolder {\sl et al.}, Phys. Rev. Lett. {\bf 86}, 4472-4478 (2001).

%Recent theoretical calculations do not reproduce the cross sections
%and kinematics used by CDF Collaboration in Phys. Rev. Lett. {\bf
%86}, 4472 (2001).

Results in Phys. Rev. Lett. {\bf 86}, 4472 (2001) by the CDF
Collaboration cannot be confirmed with our data. In addition, their
analysis used PDFs that have been superseded, resulting in more
stringent limits than would have been obtained with the more recent
PDFs used in this analysis.

\bibitem{5fns}
J.~Campbell, R.~K.~Ellis, F.~Maltoni, and S.~Willenbrock,
%``Higgs boson production in association with a single bottom quark,''
Phys.\ Rev.\ D~{\bf 67}, 095002 (2003).

\bibitem{4fns}
S.~Dawson, C.~B.~Jackson, L.~Reina, and D.~Wackeroth,
Phys.\ Rev.\ D~{\bf 69}, 074027 (2004);
S.~Dittmaier, M.~Kr{\"a}mer, and M.~Spira,
%``Higgs radiation off bottom quarks at the Tevatron and the LHC,''
Phys.\ Rev.\ D~{\bf 70}, 074010 (2004).
%[arXiv:hep-ph/0309204].

\bibitem{bh_NLO}
%K.A. Assamagan {\sl et al.}, Published in ``Les Houches 2003, Physics at TeV colliders'',
%hep-ph/0406152 ;
J.~Campbell {\sl et al.}, hep-ph/0405302.

\bibitem{top_NLO}
S.~Dawson, C.~B.~Jackson, L.~Reina, and D.~Wackeroth, Phys.\ Rev.\
Lett. {\bf 94}, 031802 (2005).
%``Higgs boson production in association with bottom quarks,''

%\bibitem{hdecay}
%A. Djouadi, J. Kalinowski and M. Spira, Computer Phys. Commun. {\bf 108} (1998) 56-74.
%M. Spira, ``HDECAY'', hep-ph/9704448,
%http://people.web.psi.ch/spira/hdecay/.

\bibitem{cpsuperh}
J.~S.~Lee {\sl et al.},
Comp.\ Phys.\ Comm.\  {\bf 156}, 283 (2004).
%Comput.\ Phys.\ Commun.\  {\bf 156}, 283 (2004).
%J.~S.~Lee, A.~Pilaftsis, M.~Carena, S.~Y.~Choi, M.~Drees, J.~R.~Ellis and C.~E.~M.~Wagner,
%``CPsuperH: A computational tool for Higgs phenomenology in the minimal
%supersymmetric standard model with explicit CP violation,''
%[arXiv:hep-ph/0307377].

\bibitem{carena}
M.~Carena and H.~E.~Haber,
%``Higgs boson theory and phenomenology. ((V)),''
Prog.\ Part.\ Nucl.\ Phys.\  {\bf 50}, 63 (2003).
%[arXiv:hep-ph/0208209].

\bibitem{boos}
E.~Boos, A.~Djouadi, M.~M{\"u}hlleitner, and A.~Vologdin,
%``The MSSM Higgs bosons in the intense-coupling regime,''
Phys.\ Rev.\ D~{\bf 66}, 055004 (2002).
%[arXiv:hep-ph/0205160].

\bibitem{run2det} D\O\ Collaboration, V.~Abazov {\sl et al.}, in preparation for submission to
Nucl. Instrum. Methods Phys. Res. A.

\bibitem{run1det} D\O\ Collaboration, S.~Abachi {\sl et al.}, Nucl.
Instrum. Methods Phys. Res. A~{\bf 338}, 185 (1994).

\bibitem{RunIIcone}
G.~C.~Blazey {\sl et al.}, in
     {\sl Proceedings of the Workshop:
     ``QCD and Weak Boson Physics in Run II,''}
     edited by U.~Baur, R.~K.~Ellis, and D.~Zeppenfeld,
     (Fermilab, Batavia, IL, 2000) p.~47;
     see Sec. 3.5 for details.
%G. Blazey {\sl et al.}, ``Run~II Jet Physics: Proceedings of the Run~II
%QCD and Weak Boson Physics Workshop'', hep-ex/0005012.

\bibitem{pythia}
T.~Sj{\"o}strand {\sl et al.},
Comp.\ Phys.\ Comm.\  {\bf 135}, 238 (2001).
%T.~Sjostrand, P.~Eden, C.~Friberg, L.~Lonnblad, G.~Miu, S.~Mrenna and E.~Norrbin,
%``High-energy-physics event generation with PYTHIA 6.1,''
%Comput.\ Phys.\ Commun.\  {\bf 135}, 238 (2001).
%[arXiv:hep-ph/0010017].
%Computer Phys. Commun. 135 (2001) 238. (LU TP 00-30,hep-ph/0010017).

\bibitem{alpgen}
M.~L.~Mangano {\sl et al.},
%M.~Moretti, F.~Piccinini, R.~Pittau and A.~D.~Polosa,
%``ALPGEN, a generator for hard multiparton processes in hadronic
%collisions,''
JHEP {\bf 0307}, 001 (2003).
%[arXiv:hep-ph/0206293].

\bibitem{Zb_NLO}
J.~Campbell, R.~K.~Ellis, F.~Maltoni, and S.~Willenbrock,
%``Associated production of a Z boson and a single heavy-quark jet,''
Phys.\ Rev.\ D~{\bf 69}, 074021 (2004).
%[arXiv:hep-ph/0312024].

\bibitem{madgraph}
F.~Maltoni and T.~Stelzer,
%``MadEvent: Automatic event generation with MadGraph,''
JHEP {\bf 0302}, 027 (2003).
%[arXiv:hep-ph/0208156].

%\bibitem{mctuning}
%A. Annovi, P. Giannetti, ``B Production in Multijet Events'', Matrix
%Element/MC Tuning Workshop, Fermilab, Oct. 4, 2002,
%http://cepa.fnal.gov/CPD/MCTuning/event\_gen\_2002.pdf.

\bibitem{mclimit}
T.~Junk, Nucl. Instrum. Methods Phys. Res. A~{\bf 434}, 435 (1999).
%T. Junk, ``Confidence Level Computation for Combining Searches with
%Small Statistics'', Nucl.Instrum.Meth. A434 (1999) 435-443, hep-ex/9902006.

\bibitem{tev}
M.~Carena, S.~Mrenna, and C.~E.~M.~Wagner,
%``MSSM Higgs boson phenomenology at the Tevatron collider,''
Phys.\ Rev.\ D~{\bf 60}, 075010 (1999);
%[arXiv:hep-ph/9808312].
%``The complementarity of LEP, the Tevatron and the LHC in the search for  a
%light MSSM Higgs boson,''
ibid, D~{\bf 62}, 055008 (2000).
%[arXiv:hep-ph/9907422].

%\bibitem{root}
%ROOT, TLimit classes from v4\_00\_03a were used.

\end{thebibliography}