$J/\psi$ yield enhancement at very low transverse momentum in Pb-Pb collisions at $\sqrt{s_\mathrm{NN}} = \mathrm{5.02 \,TeV}$ with ALICE

Zhuo Zhou
{"title":"$J/\\psi$ yield enhancement at very low transverse momentum in Pb-Pb collisions at $\\sqrt{s_\\mathrm{NN}} = \\mathrm{5.02 \\,TeV}$ with ALICE","authors":"Zhuo Zhou","doi":"10.22323/1.320.0028","DOIUrl":null,"url":null,"abstract":"A large excess in the yield of $\\mathrm{J/\\psi}$ at very low transverse momentum (${p}_\\mathrm{T}<\\mathrm{300 MeV/}c$) and forward rapidity (2.5$<y<$4.0) was recently reported by $\\mathrm{ALICE}$ using the LHC Run-1 data, in Pb-Pb collisions at $\\sqrt{s_\\mathrm{NN}} = \\mathrm{2.76 \\,TeV}$. This is suggestive of coherent $\\mathrm{J/\\psi}$ photo-production, similar to measurements in ultra-peripheral collisions (UPC), where the nuclei only interact electromagnetically.\r\n\r\nDuring the LHC Run-2, the measurement of the very low ${p}_\\mathrm{T}$ $\\mathrm{J/\\psi}$ at mid-rapidity (-0.9$<y<$0.9) in the di-electron decay channel was possible thanks to the large sample of recorded Pb-Pb collisions. The central barrel detectors provide a good momentum resolution, and make the measurement sensitive to the key characteristics of $\\mathrm{J/\\psi}$ coherent photo-production, like the corresponding transverse momentum spectrum.\r\n\r\nIn this talk, it will focus on the $\\mathrm{J/\\psi}$ production in the very low-${p}_\\mathrm{T}$ range in peripheral Pb-Pb collisions at $\\sqrt{s_\\mathrm{NN}} = 5.02 \\,TeV$. The ${p}_\\mathrm{T}$ spectrum shape for coherent production will be shown and compared to UPC measurements.","PeriodicalId":104537,"journal":{"name":"Proceedings of 12th International Workshop on High-pT Physics in the RHIC/LHC Era — PoS(High-pT2017)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2019-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of 12th International Workshop on High-pT Physics in the RHIC/LHC Era — PoS(High-pT2017)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.22323/1.320.0028","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

Abstract

A large excess in the yield of $\mathrm{J/\psi}$ at very low transverse momentum (${p}_\mathrm{T}<\mathrm{300 MeV/}c$) and forward rapidity (2.5$
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
$J/\psi$ 在极低横向动量下与ALICE在$\sqrt{s_\mathrm{NN}} = \mathrm{5.02 \,TeV}$的Pb-Pb碰撞的产率增强
最近,$\mathrm{ALICE}$利用大型强子对撞机Run-1的数据报道了在$\sqrt{s_\mathrm{NN}} = \mathrm{2.76 \,TeV}$的Pb-Pb碰撞中,在非常低的横向动量(${p}_\mathrm{T}<\mathrm{300 MeV/}c$)和正向速度(2.5 $
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1