# Measurements of the Nuclear Modification Factor for Jets in Pb+Pb Collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV with the ATLAS Detector

Philip James Clark, Christos Leonidopoulos, Victoria Jane Martin, Corrinne Mills, Atlas Collaboration

Research output: Contribution to journalArticlepeer-review

## Abstract

Measurements of inclusive jet production are performed in $pp$ and Pb+Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV with the ATLAS detector at the LHC, corresponding to integrated luminosities of 4.0 $\mathrm{pb}^{-1}$ and 0.14 $\mathrm{nb}^{-1}$, 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 $32 <p_{\mathrm{T}} <500$ GeV, and absolute rapidity $|y| <2.1$ and as a function of collision centrality. The nuclear modification factor, $R_{\mathrm{AA}}$, is evaluated and jets are found to be suppressed by approximately a factor of two in central collisions compared to $pp$ collisions. The $R_{\mathrm{AA}}$ shows a slight increase with $p_{\mathrm{T}}$ and no significant variation with rapidity.
Original language English Aad:2014bxa 072302 Physical Review Letters 114 7 https://doi.org/10.1103/PhysRevLett.114.072302 Published - 20 Feb 2015

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