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Measurement of the jet radius and transverse momentum dependence of inclusive jet suppression in lead-lead collisions at root S-NN=2.76 TeV with the ATLAS detector
ATLAS collaboration
2013
发表期刊PHYSICS LETTERS B
卷号719期号:4--5页码:220-241
通讯作者Arik, E (reprint author), Bogazici Univ, Dept Phys, Istanbul, Turkey.
摘要Measurements of inclusive jet suppression in heavy ion collisions at the LHC provide direct sensitivity to the physics of jet quenching. In a sample of lead-lead collisions at root S-NN = 2.76 TeV corresponding to an integrated luminosity of approximately 7 mu b(-1), ATLAS has measured jets with a calorimeter system over the pseudorapidity interval vertical bar eta vertical bar < 2.1 and over the transverse momentum range 38 < pT <210 GeV. Jets were reconstructed using the anti-k(t) algorithm with values for the distance parameter that determines the nominal jet radius of R = 0.2, 0.3, 0.4 and 0.5. The centrality dependence of the jet yield is characterized by the jet "central-to-peripheral ratio," R-CP. Jet production is found to be suppressed by approximately a factor of two in the 10% most central collisions relative to peripheral collisions. R-CP varies smoothly with centrality as characterized by the number of participating nucleons. The observed suppression is only weakly dependent on jet radius and transverse momentum. These results provide the first direct measurement of inclusive jet suppression in heavy ion collisions and complement previous measurements of dijet transverse energy imbalance at the LHC. (c) 2013 CERN. Published by Elsevier B.V. All rights reserved.
关键词RADIATIVE ENERGY-LOSS QUARK-GLUON PLASMA NUCLEAR COLLISIONS COLLABORATION FLOW QCD
学科领域Physics
DOI10.1016/j.physletb.2013.01.024
收录类别SCI
语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000315316900004
引用统计
被引频次:143[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/311005/213466
专题实验物理中心
作者单位中国科学院高能物理研究所
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ATLAS collaboration. Measurement of the jet radius and transverse momentum dependence of inclusive jet suppression in lead-lead collisions at root S-NN=2.76 TeV with the ATLAS detector[J]. PHYSICS LETTERS B,2013,719(4--5):220-241.
APA ATLAS collaboration.(2013).Measurement of the jet radius and transverse momentum dependence of inclusive jet suppression in lead-lead collisions at root S-NN=2.76 TeV with the ATLAS detector.PHYSICS LETTERS B,719(4--5),220-241.
MLA ATLAS collaboration."Measurement of the jet radius and transverse momentum dependence of inclusive jet suppression in lead-lead collisions at root S-NN=2.76 TeV with the ATLAS detector".PHYSICS LETTERS B 719.4--5(2013):220-241.
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