Measurement of inclusive jet and dijet production in $pp$ collisions at $\sqrt{s}=7$ TeV using the ATLAS detector - INSPIRE

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Measurement of inclusive jet and dijet production in $pp$ collisions at $\sqrt{s}=7$ TeV using the ATLAS detector

ATLAS

Collaboration

Dec, 2011

41 pages

Published in:

Phys.Rev.D 86 (2012) 014022

e-Print:

1112.6297 [hep-ex]

DOI:

10.1103/PhysRevD.86.014022

Report number:

CERN-PH-EP-2011-192

Experiments:

CERN-LHC-ATLAS

View in:

reference search350 citations

Citations per year

Abstract: (arXiv)

Inclusive jet and dijet cross sections have been measured in proton-proton collisions at a centre-of-mass energy of 7 TeV using the ATLAS detector at the Large Hadron Collider. The cross sections were measured using jets clustered with the anti-kT algorithm with parameters R=0.4 and R=0.6. These measurements are based on the 2010 data sample, consisting of a total integrated luminosity of 37 inverse picobarns. Inclusive jet double-differential cross sections are presented as a function of jet transverse momentum, in bins of jet rapidity. Dijet double-differential cross sections are studied as a function of the dijet invariant mass, in bins of half the rapidity separation of the two leading jets. The measurements are performed in the jet rapidity range |y|<4.4, covering jet transverse momenta from 20 GeV to 1.5 TeV and dijet invariant masses from 70 GeV to 5 TeV. The data are compared to expectations based on next-to-leading order QCD calculations corrected for non-perturbative effects, as well as to next-to-leading order Monte Carlo predictions. In addition to a test of the theory in a new kinematic regime, the data also provide sensitivity to parton distribution functions in a region where they are currently not well-constrained.

Note:

42 pages plus author list (54 pages total), 20 figures, 36 tables, matches final version to appear in Physical Review D

12.38.Qk
13.87.Ce
jet: hadroproduction
jet: particle identification
differential cross section: measured
parton: distribution function
p p: scattering
dijet: mass spectrum
ATLAS
CERN LHC Coll

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