Measurement of the inclusive jet cross-section in proton–proton collisions at √s=7 TeV using 4.5 fb−1 of data with the ATLAS detector

Aad, G. and Abbott, B. and Abdallah, J. and Abdel Khalek, S. and Abdinov, O. and Krasznahorkay, Attila and Nagai, Yoshikazu and Pásztor, Gabriella and Tóth, József (2015) Measurement of the inclusive jet cross-section in proton–proton collisions at √s=7 TeV using 4.5 fb−1 of data with the ATLAS detector. JOURNAL OF HIGH ENERGY PHYSICS (2). ISSN 1126-6708

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Abstract

The inclusive jet cross-section is measured in proton–proton collisions at a centre-of-mass energy of 7 TeV using a data set corresponding to an integrated luminosity of 4.5 fb−1 collected with the ATLAS detector at the Large Hadron Collider in 2011. Jets are identified using the anti-kt algorithm with radius parameter values of 0.4 and 0.6. The double-differential cross-sections are presented as a function of the jet transverse momentum and the jet rapidity, covering jet transverse momenta from 100 GeV to 2 TeV. Next-to-leading-order QCD calculations corrected for non-perturbative ef- fects and electroweak effects, as well as Monte Carlo simulations with next-to-leading-order matrix elements interfaced to parton showering, are compared to the measured cross-sections. A quantita- tive comparison of the measured cross-sections to the QCD calculations using several sets of parton distribution functions is performed.

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