Measurements of the Nuclear Modification Factor for Jets in Pb plus Pb Collisions at root SNN=2.76 TeV with the ATLAS Detector

A. Do Valle Wemans, ATLAS Collaboration

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186 Citations (Scopus)
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Abstract

Measurements of inclusive jet production are performed in pp and Pb + Pb collisions at root 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-k(t) 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 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 RAA shows a slight increase with pT and no significant variation with rapidity.
Original languageEnglish
Article number072302
JournalPhysical Review Letters
Volume114
Issue number7
DOIs
Publication statusPublished - 20 Feb 2015

Keywords

  • TRANSVERSE-MOMENTUM DEPENDENCE
  • CHARGED-PARTICLE PRODUCTION
  • LEAD-LEAD COLLISIONS
  • QUARK-GLUON PLASMA
  • ROOT-S(NN)=2.76 TEV
  • INCLUSIVE JET
  • ROOT-S-NN=2.76 TEV
  • COLLABORATION
  • PERSPECTIVE
  • SUPPRESSION

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