gamma suppression at forward rapidity in Pb-Pb collisions at root s(NN)=5.02 TeV
文献类型：期刊论文
| 作者 | Acharya, S; Acosta, FT; Adamova, D; Adolfsson, J; Aggarwal, MM; Rinella, GA; Agnello, M; Agrawal, N; Ahammed, Z; Ahn, SU |
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2019 |
| 卷号 | 790期号:-页码:89—101 |
| 关键词 | QUARK-GLUON PLASMA TRANSVERSE-MOMENTUM DEPENDENCE J/PSI SUPPRESSION UPSILON PRODUCTION PP COLLISIONS PERSPECTIVE |
| ISSN号 | 0370-2693 |
| DOI | 10.1016/j.physletb.2018.11.067 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Inclusive gamma(1S) and gamma(2S) production have been measured in Pb-Pb collisions at the centre-of-mass energy per nucleon-nucleon pair root s(NN) = 5.02 TeV, using the ALICE detector at the CERN LHC. The gamma mesons are reconstructed in the centre-of-mass rapidity interval 2.5 < y < 4 and in the transverse momentum range p(T) < 15 GeV/c, via their decays to muon pairs. In this Letter, we present results on the inclusive gamma(1S) nuclear modification factor R-AA as a function of collision centrality, transverse momentum and rapidity. The gamma(1S) and gamma(2S) R-AA, integrated over the centrality range 0-90%, are 0.37 +/- 0.02(stat) +/- 0.03(syst) and 0.10 +/- 0.04(stat) +/- 0.02(syst), respectively, leading to a ratio R-AA(gamma(2S))/R-AA(gamma(1S))of 0.28 +/- 0.12(stat) +/- 0.06(syst). The observed gamma(1S) suppression increases with the centrality of the collision and no significant variation is observed as a function of transverse momentum and rapidity. (C) 2018 Published by Elsevier B.V. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31644]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Rudjer Boskovic Inst, Zagreb, Croatia; 2.Univ Copenhagen, Niels Bohr Inst, Copenhagen, Denmark; 3.Natl Inst Subat Phys, Nikhef, Amsterdam, Netherlands; 4.NRC Kurchatov Inst IHEP, Protvino, Russia; 5.NRNU Moscow Engn Phys Inst, Moscow, Russia; 6.STFC Daresbury Lab, Nucl Phys Grp, Daresbury, England; 7.Czech Acad Sci, Nucl Phys Inst, Rez, Czech Republic; 8.Oak Ridge Natl Lab, Oak Ridge, TN USA; 9.Ohio State Univ, Columbus, OH 43210 USA; 10.Petersburg Nucl Phys Inst, Gatchina, Russia; |
| 推荐引用方式 GB/T 7714 | Acharya, S,Acosta, FT,Adamova, D,et al. gamma suppression at forward rapidity in Pb-Pb collisions at root s(NN)=5.02 TeV[J]. PHYSICS LETTERS B,2019,790(-):89—101. |
| APA | Acharya, S.,Acosta, FT.,Adamova, D.,Adolfsson, J.,Aggarwal, MM.,...&Zou, S.(2019).gamma suppression at forward rapidity in Pb-Pb collisions at root s(NN)=5.02 TeV.PHYSICS LETTERS B,790(-),89—101. |
| MLA | Acharya, S,et al."gamma suppression at forward rapidity in Pb-Pb collisions at root s(NN)=5.02 TeV".PHYSICS LETTERS B 790.-(2019):89—101. |
入库方式： OAI收割
来源：上海应用物理研究所
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