Measurements of the Nuclear Modification Factor for Jets in Pb+Pb Collisions at sNN−−−√=2.76 TeV with the ATLAS Detector
- Aad, G. et al. (ATLAS Collaboration)
Publication date
January 2015
DOI Publisher
American Physical Society (APS)Abstract
Measurements of inclusive jet production are performed in pp and Pb+Pb collisions at sNN−−−√=2.76 TeV with the ATLAS detector at the LHC, corresponding to integrated luminosities of 4.0 and 0.14 nb−1, 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<500 GeV 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.peerReviewe
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