  Measurements of the inclusive jet cross section with the anti-kt clustering
algorithm are presented for two radius parameters, R=0.5 and 0.7. They are
based on data from LHC proton-proton collisions at sqrt(s) = 7 TeV
corresponding to an integrated luminosity of 5.0 inverse femtobarns collected
with the CMS detector in 2011. The ratio of these two measurements is obtained
as a function of the rapidity and transverse momentum of the jets. Significant
discrepancies are found comparing the data to leading-order simulations and to
fixed-order calculations at next-to-leading order, corrected for
nonperturbative effects, whereas simulations with next-to-leading-order matrix
elements matched to parton showers describe the data best.
