Measurement of charged-particle spectra in Pb+Pb collisions at √ sNN = 2.76 TeV with the ATLAS detector at the LHC

The ATLAS collaboration

Research output: Contribution to journalArticle

Abstract

The ATLAS experiment at the LHC has measured the production of charged hadrons in PbPb collisions at sqrt{s_{NN}}=2.76TeV as a function of transverse momentum (pT) in the range 0.5-150GeV and in the pseudorapidity range of +/- 2.5. The charged particle spectra measured at different pseudorapidities are consistent with each other within the statistical and systematic uncertainties. The ratio of the central to peripheral events measured in the 0-5% and 60-80% centrality classes and scaled by the number of binary nucleon-nucleon collisions shows a suppression of charged hadrons by a factor of 5 at pT=7GeV. At higher pT the ratio increases with transverse momentum up to the highest measured pT.
Original languageEnglish (US)
JournalJHEP 1509
StatePublished - 2015

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