• Open Access

Measurements of the Nuclear Modification Factor for Jets in Pb+Pb Collisions at sNN=2.76TeV with the ATLAS Detector

G. Aad et al. (ATLAS Collaboration)
Phys. Rev. Lett. 114, 072302 – Published 20 February 2015

Abstract

Measurements of inclusive jet production are performed in pp and Pb+Pb collisions at sNN=2.76TeV with the ATLAS detector at the LHC, corresponding to integrated luminosities of 4.0 and 0.14nb1, respectively. The jets are identified with the anti-kt algorithm with R=0.4, and the spectra are measured over the kinematic range of jet transverse momentum 32<pT<500GeV and absolute rapidity |y|<2.1 and as a function of collision centrality. The nuclear modification factor RAA is evaluated, and jets are found to be suppressed by approximately a factor of 2 in central collisions compared to pp collisions. The RAA shows a slight increase with pT and no significant variation with rapidity.

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  • Received 10 November 2014

DOI:https://doi.org/10.1103/PhysRevLett.114.072302

This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

© 2015 CERN, for the ATLAS Collaboration

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Vol. 114, Iss. 7 — 20 February 2015

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