Measurements of the nuclear modification factor for jets in Pb+Pb collisions at √sNN=2.76 TeV with the ATLAS detector

Allison, Lee and Barton, Adam and Beattie, Michael and Borissov, Guennadi and Bouhova-Thacker, Eva and Chilingarov, Alexandre and Dearnaley, William and Fox, Harald and Grimm, Kathryn and Henderson, Robert and Hughes, Gareth and Jones, Roger William Lewis and Kartvelishvili, Vakhtang and Long, Robin and Love, Peter and Maddocks, Harvey and Smizanska, Maria and Walder, James (2015) Measurements of the nuclear modification factor for jets in Pb+Pb collisions at √sNN=2.76  TeV with the ATLAS detector. Physical review letters, 114. ISSN 1079-7114

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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.

Item Type:
Journal Article
Journal or Publication Title:
Physical review letters
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© 2015 CERN, for the ATLAS Collaboration
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Deposited On:
18 Jun 2015 05:59
Last Modified:
15 Jul 2020 05:02