4.7 Article

Accessing subnuclear fluctuations and saturation with multiplicity dependent J/ψ production in p plus p and p plus Pb collisions

期刊

PHYSICS LETTERS B
卷 827, 期 -, 页码 -

出版社

ELSEVIER
DOI: 10.1016/j.physletb.2022.136952

关键词

-

资金

  1. National Science Foundation [PHY-1945471]
  2. U.S. Department of Energy [DE-SC0012704]
  3. European Research Council (ERC) under the European Union [788223]
  4. Office of Science of the U.S. Department of Energy [DE-AC02-05CH11231]
  5. European Research Council (ERC) [788223] Funding Source: European Research Council (ERC)

向作者/读者索取更多资源

This study investigates the relationship between the production of J/psi vector mesons and the charged hadron multiplicity in p+p and p+Pb collisions at LHC energies. The research demonstrates that the characteristic difference between forward and backward rapidity in p+Pb collisions is due to different degrees of saturation probed at different rapidities. The study also shows that experimental data on heavy-flavor production as a function of event activity provide stringent constraints on the fluctuating proton structure.
We study the production of J/psi vector mesons as a function of charged hadron multiplicity in p+p and p+Pb collisions at LHC energies. We employ the color glass condensate framework, using running coupling Balitsky-Kovchegov evolved dipole amplitudes, to compute gluon and c (c) over bar -pair production. We use fragmentation functions to obtain charged hadrons, and explore two different hadronization schemes for the J/psi: non-relativistic quantum chromodynamics and the improved color evaporation model. In our framework, event-by-event multiplicity fluctuations of both hadrons and J/psi are driven by geometric and saturation scale normalization fluctuations. Studying the correlation between J/psi and hadron multiplicity, we show that the characteristic difference between forward and backward rapidity in p+Pb collisions is a result of different degrees of saturation probed at different rapidities. We demonstrate that experimental data on heavy-flavor production as a function of event activity provide stringent constraints on the fluctuating proton structure. (c) 2022 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP(3).

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据