IHEP OpenIR  > 粒子天体物理中心
Modification of jet shapes in PbPb collisions at root s(NN)=2.76 TeV
CMS Collaboration
2014
发表期刊PHYSICS LETTERS B
卷号730页码:243-263
通讯作者Chatrchyan, S (reprint author), CERN, CH-1211 Geneva 23, Switzerland.
摘要The first measurement of jet shapes, defined as the fractional transverse momentum radial distribution, for inclusive jets produced in heavy-ion collisions is presented. Data samples of PbPb and pp collisions, corresponding to integrated luminosities of 150 mu b(-1) and 5.3 pb(-1) respectively, were collected at a nucleon-nucleon centre-of-mass energy of root s(NN) = 2.76 TeV with the CMS detector at the LHC. The jets are reconstructed with the anti-k(T) algorithm with a distance parameter R = 0.3, and the jet shapes are measured for charged particles with transverse momentum P-T > 1 GeV/c. The jet shapes measured in PbPb collisions in different collision centralities are compared to reference distributions based on the pp data. A centrality-dependent modification of the jet shapes is observed in the more central PbPb collisions, indicating a redistribution of the energy inside the jet cone. This measurement provides information about the parton shower mechanism in the hot and dense medium produced in heavy-ion collisions. (C) 2014 The Authors. Published by Elsevier B.V.
关键词QUARK-GLUON PLASMA MOMENTUM DEPENDENCE TRANSVERSE-MOMENTUM COLLABORATION PERSPECTIVE SUPPRESSION DETECTOR MATTER
学科领域Physics
DOI10.1016/j.physletb.2014.01.042
收录类别SCI
语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000333506400041
引用统计
被引频次:96[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/311005/213684
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. Modification of jet shapes in PbPb collisions at root s(NN)=2.76 TeV[J]. PHYSICS LETTERS B,2014,730:243-263.
APA CMS Collaboration.(2014).Modification of jet shapes in PbPb collisions at root s(NN)=2.76 TeV.PHYSICS LETTERS B,730,243-263.
MLA CMS Collaboration."Modification of jet shapes in PbPb collisions at root s(NN)=2.76 TeV".PHYSICS LETTERS B 730(2014):243-263.
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