标题:J/ψ production at high transverse momenta in p+p and Au + Au collisions at sNN=200GeV
作者:STAR Collaboration; Adamczyk L.; Agakishiev G.; Aggarwal M.M.; Ahammed Z.; Alakhverdyants A.V.; Alekseev I.; Alford J.;等 更多
作者机构:[ Adamczyk, L] AGH University of Science and Technology, Cracow, Poland;[ Agakishiev, G] Joint Institute for Nuclear Research, Dubna, 141 980, Russian 更多
通讯作者:Tang, Z(zbtang@ustc.edu.cn)
通讯作者地址:[Tang, Z] University of Science & Technology of ChinaChina;
来源:Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
出版年:2013
卷:722
期:43103
页码:55-62
DOI:10.1016/j.physletb.2013.04.010
关键词:Color-screening; Heavy-ion collisions; J/ψ suppression; Quarkonium; STAR
摘要:We report J/ψ spectra for transverse momenta pT>5GeV/c at mid-rapidity in p+p and Au+Au collisions at sNN=200GeV. The inclusive J/ψ spectrum and the extracted B-hadron feed-down are compared to models incorporating different production mechanisms. We observe significant suppression of the J/ψ yields for pT>5GeV/c in 0-30% central Au+Au collisions relative to the p+p yield scaled by the number of binary nucleon-nucleon collisions in Au+Au collisions. In 30-60% mid-central collisions, no such suppression is observed. The level of suppression is consistently less than that of high-pT π± and low-pT J/ψ at RHIC and high-pT J/ψ at the LHC. © 2013 Elsevier B.V..
收录类别:SCOPUS
Scopus被引频次:71
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-84876837006&doi=10.1016%2fj.physletb.2013.04.010&partnerID=40&md5=5d3b30c0493804383f0178a389dffc24
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