Measurement of Inclusive Jet and Dijet Cross Sections in Proton-Proton Collisions at 7 TeV Centre-of-Mass Energy with the ATLAS Detector - INSPIRE

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Measurement of Inclusive Jet and Dijet Cross Sections in Proton-Proton Collisions at 7 TeV Centre-of-Mass Energy with the ATLAS Detector

ATLAS

Collaboration

Sep, 2010

67 pages

Published in:

Eur.Phys.J.C 71 (2011) 1512

e-Print:

1009.5908 [hep-ex]

DOI:

10.1140/epjc/s10052-010-1512-2

Report number:

CERN-PH-EP-2010-034

Experiments:

CERN-LHC-ATLAS

View in:

reference search287 citations

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Abstract: (arXiv)

Jet cross sections have been measured for the first time in proton-proton collisions at a centre-of-mass energy of 7 TeV using the ATLAS detector. The measurement uses an integrated luminosity of 17 nb-1 recorded at the Large Hadron Collider. The anti-kt algorithm is used to identify jets, with two jet resolution parameters, R = 0.4 and 0.6. The dominant uncertainty comes from the jet energy scale, which is determined to within 7% for central jets above 60 GeV transverse momentum. Inclusive single-jet differential cross sections are presented as functions of jet transverse momentum and rapidity. Dijet cross sections are presented as functions of dijet mass and the angular variable

\chi

. The results are compared to expectations based on next-to-leading-order QCD, which agree with the data, providing a validation of the theory in a new kinematic regime.

Note:

53 pages plus author list (67 pages total), 26 figures, 22 tables. Typo in abstract corrected, document unchanged. Submitted to EPJC

jet: pair production
jet: transverse momentum
jet: resolution
higher-order: 1
ATLAS
differential cross section: measured
quantum chromodynamics: perturbation theory
CERN LHC Coll
p p: inclusive reaction
jet: hadroproduction

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