Measurement of the inclusive jet cross section in pp collisions at sqrt(s)=2.76 TeV and comparison to the inclusive jet cross section at sqrt(s)=7 TeV using the ATLAS detector

The ATLAS collaboration
Aad, Georges , Abajyan, Tatevik , Abbott, Brad , Abdallah, Jalal , Abdel Khalek, Samah , Abdelalim, Ahmed Ali , Abdinov, Ovsat , Aben, Rosemarie , Abi, Babak , Abolins, Maris
Eur.Phys.J.C 73 (2013) 2509, 2013.

Abstract (data abstract)
CERN-LHC. This paper reports the measurement of inclusive jet cross sections in proton-proton collisions at a centre-of-mass energy of 2.76 TeV using a data sample of integrated luminosity of 0.20 pb-1 collected in 2011. Jets are identified using the anti-kt algorithm with two radius parameters (0.4 and 0.6). The cross sections are presented as a function of the jet transverse momentum and rapidity covering jets from 20-430 GeV in transverse momentum and |rapidity| < 4.4. The data are also compared with previous ATLAS 7 TeV cross sections as functions of PT and XT. The main tables below show the results correlated and uncorrelated systematic errors individually combined, as presented in the plots in the paper. The first table below gives access to the complete tables with the various sources of systematic error individually presented. Correlations over the rapidity bins and to the 7 TeV data are shown in table 1 of the paper and repeated below. Note added (27 JUN 2014): The central values of the (2.76 TeV)/(7 TeV) cross-section ratios reported in Tables 15-42 below should be multiplied by a factor of 1/1.0187 to take into account the updated value of the integrated luminosity for the ATLAS 2010 data taking period. The uncertainty on the global normalisation ("Lumi") for the 7 TeV cross sections increases slightly from 3.4% to 3.5%. See Eur.Phys.J. C73 (2013) 2518 for more details. The 7 TeV Lumi uncertainty is added in quadrature to the 2.76 TeV Lumi uncertainty (2.7%) in the cross-section ratios, leading to a slight increase in the Lumi uncertainty on the cross-section ratios from sqrt(2.7**2+3.4**2)=4.3% to sqrt(2.7**2+3.5**2)=4.4%.

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