Measurement of charged-particle spectra in Pb plus Pb collisions at root s(NN)=2.76 TeV with the ATLAS detector at the LHC
ATLAS Collaboration
刊名JOURNAL OF HIGH ENERGY PHYSICS
2015
卷号2015期号:9页码:50
关键词QCD Heavy Ions
学科分类Physics
DOI10.1007/JHEP09(2015)050
文章类型Article
英文摘要Charged-particle spectra obtained in Pb+Pb interactions at root s(NN) = 2.76TeV and pp interactions at root s(NN) = 2.76TeV with the ATLAS detector at the LHC are presented, using data with integrated luminosities of 0.15 nb(-1) and 4.2 pb(-1), respectively, in a wide transverse momentum (0.5 < p(T) < 150 GeV) and pseudorapidity (vertical bar eta vertical bar < 2) range. For Pb+Pb collisions, the spectra are presented as a function of collision centrality, which is determined by the response of the forward calorimeters located on both sides of the interaction point. The nuclear modification factors R-AA and R-CP are presented in detail as a function of centrality, p(T) and eta. They show a distinct p(T)-dependence with a pronounced minimum at about 7 GeV. Above 60 GeV, R-AA is consistent with a plateau at a centrality-dependent value, within the uncertainties. The value is 0.55 +/- 0.01(stat.) +/- 0.04(syst.) in the most central collisions. The R-AA distribution is consistent with flat vertical bar eta vertical bar dependence over the whole transverse momentum range in all centrality classes.
类目[WOS]Physics, Particles & Fields
收录类别SCI
WOS记录号WOS:000361614600001
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被引频次:13[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/228703
专题中国科学院高能物理研究所_实验物理中心_期刊论文
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ATLAS Collaboration. Measurement of charged-particle spectra in Pb plus Pb collisions at root s(NN)=2.76 TeV with the ATLAS detector at the LHC[J]. JOURNAL OF HIGH ENERGY PHYSICS,2015,2015(9):50.
APA ATLAS Collaboration.(2015).Measurement of charged-particle spectra in Pb plus Pb collisions at root s(NN)=2.76 TeV with the ATLAS detector at the LHC.JOURNAL OF HIGH ENERGY PHYSICS,2015(9),50.
MLA ATLAS Collaboration."Measurement of charged-particle spectra in Pb plus Pb collisions at root s(NN)=2.76 TeV with the ATLAS detector at the LHC".JOURNAL OF HIGH ENERGY PHYSICS 2015.9(2015):50.
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