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Evidence of b-Jet Quenching in PbPb Collisions at root S-NN=2.76 TeV
CMS Collaboration
2014
发表期刊PHYSICAL REVIEW LETTERS
卷号113期号:13
通讯作者Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia.
摘要The production of jets associated to bottom quarks is measured for the first time in PbPb collisions at a center-of-mass energy of 2.76 TeV per nucleon pair. Jet spectra are reported in the transverse momentum (p(T)) range of 80-250 GeV/c, and within pseudorapidity vertical bar eta vertical bar < 2. The nuclear modification factor ( R-AA) calculated from these spectra shows a strong suppression in the b-jet yield in PbPb collisions relative to the yield observed in pp collisions at the same energy. The suppression persists to the largest values of pT studied, and is centrality dependent. The R-AA is about 0.4 in the most central events, similar to previous observations for inclusive jets. This implies that jet quenching does not have a strong dependence on parton mass and flavor in the jet p(T) range studied.
关键词QUARK-GLUON PLASMA ROOT-S(NN)=2.76 TEV ENERGY-LOSS MOMENTUM DEPENDENCE TRANSVERSE-MOMENTUM MATTER COLLABORATION PERSPECTIVE TOMOGRAPHY DETECTOR
学科领域Physics
DOI10.1103/PhysRevLett.113.132301
收录类别SCI
语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000344051400002
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/213807
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. Evidence of b-Jet Quenching in PbPb Collisions at root S-NN=2.76 TeV[J]. PHYSICAL REVIEW LETTERS,2014,113(13).
APA CMS Collaboration.(2014).Evidence of b-Jet Quenching in PbPb Collisions at root S-NN=2.76 TeV.PHYSICAL REVIEW LETTERS,113(13).
MLA CMS Collaboration."Evidence of b-Jet Quenching in PbPb Collisions at root S-NN=2.76 TeV".PHYSICAL REVIEW LETTERS 113.13(2014).
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