Measurements of the Nuclear Modification Factor for Jets in Pb+Pb Collisions at sqrt[s_{NN}]=2.76 TeV with the ATLAS Detector.

Aad, G ; Abbott, B ; Abdallah, J ; Abdel Khalek, S ; Abdinov, O ; Aben, R ; Abi, B ; Abolins, M ; AbouZeid, O S and Abramowicz, H , et al. (2015) In Physical Review Letters 114(7).
Measurements of inclusive jet production are performed in pp and Pb+Pb collisions at sqrt[s_{NN}]=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-k_{t} algorithm with R=0.4, and the spectra are measured over the kinematic range of jet transverse momentum 32<p_{T}<500 GeV and absolute rapidity |y|<2.1 and as a function of collision centrality. The nuclear modification factor R_{AA} is evaluated, and jets are found to be suppressed by approximately a factor of 2 in central collisions compared to pp collisions. The R_{AA} shows a slight increase with p_{T} and no significant variation with rapidity.
Please use this url to cite or link to this publication:
, et al. (More)