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Measurement of jet fragmentation in PbPb and pp collisions at root s(NN)=2.76 TeV
CMS Collaboration
2014
发表期刊PHYSICAL REVIEW C
卷号90期号:2
通讯作者Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia.
摘要The jet fragmentation function of inclusive jets with transverse momentum p(T) above 100 GeV/c in PbPb collisions has been measured using reconstructed charged particles with p(T) above 1 GeV/c in a cone of radius 0.3 around the jet axis. A data sample of PbPb collisions collected in 2011 at a nucleon-nucleon center-of-mass energy of root s(NN) = 2.76 TeV corresponding to an integrated luminosity of 150 mu b(-1) is used. The results for PbPb collisions as a function of collision centrality and jet transverse momentum are compared to reference distributions based on pp data collected at the same center-of-mass energy in 2013, with an integrated luminosity of 5.3 pb(-1). A centrality-dependent modification of the fragmentation function is found. For the most central collisions, a significant enhancement is observed in the PbPb/pp fragmentation function ratio for charged particles with p(T) less than 3 GeV/c. This enhancement is observed for all jet p(T) bins studied.
关键词ENERGY
学科领域Physics
DOI10.1103/PhysRevC.90.024908
收录类别SCI
语种英语
WOS类目Physics, Nuclear
WOS记录号WOS:000341271300005
引用统计
被引频次:58[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/311005/213768
专题粒子天体物理中心
作者单位中国科学院高能物理研究所
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CMS Collaboration. Measurement of jet fragmentation in PbPb and pp collisions at root s(NN)=2.76 TeV[J]. PHYSICAL REVIEW C,2014,90(2).
APA CMS Collaboration.(2014).Measurement of jet fragmentation in PbPb and pp collisions at root s(NN)=2.76 TeV.PHYSICAL REVIEW C,90(2).
MLA CMS Collaboration."Measurement of jet fragmentation in PbPb and pp collisions at root s(NN)=2.76 TeV".PHYSICAL REVIEW C 90.2(2014).
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