Upsilon suppression at forward rapidity in Pb-Pb collisions at root s(NN)=5.02 TeV

doi:10.1016/j.physletb.2018.11.067

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	Upsilon suppression at forward rapidity in Pb-Pb collisions at root s(NN)=5.02 TeV
	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
	2019
卷号	790 页码:89-101
关键词	QUARK-GLUON PLASMA TRANSVERSE-MOMENTUM DEPENDENCE J/PSI SUPPRESSION 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
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/32273]
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.Czech Acad Sci, Nucl Phys Inst, Rez, Czech Republic; 2.Yerevan Phys Inst Fdn, AI Alikhanyan Natl Sci Lab, Yerevan, Armenia; 3.Natl Acad Sci Ukraine, Bogolyubov Inst Theoret Phys, Kiev, Ukraine; 4.Bose Inst, Dept Phys, Kolkata, India; 5.CAPSS, Kolkata, India; 6.Budker Inst Nucl Phys, Novosibirsk, Russia; 7.Calif Polytech State Univ San Luis Obispo, San Luis Obispo, CA 93407 USA; 8.Cent China Normal Univ, Wuhan, Hubei, Peoples R China; 9.IN2P3, Ctr Calcul, Lyon, France; 10.Ctr Aplicac Tecnol & Desarrollo Nucl CEADEN, Havana, Cuba;
推荐引用方式 GB/T 7714	Acharya, S,Acosta, FT,Adamova, D,et al. Upsilon 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).Upsilon 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."Upsilon suppression at forward rapidity in Pb-Pb collisions at root s(NN)=5.02 TeV".PHYSICS LETTERS B 790(2019):89-101.