Centrality dependence and isospin effect on $\Wpm$ and $\Zn$ productions in nucleus-nucleus collisions at $\sNN=5.02$~TeV
| Autor: | Zhou, Dai-Mei, Yan, Yu-Liang, Zheng, Liang, Zhao, Ming-Rui, Li, Xiao-Mei, Zhang, Xiao-Ming, Chen, Gang, Lei, An-Ke, Zhu, Ya-Qian, Cai, Xu, Sa, Ben-Hao |
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| Rok vydání: | 2022 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| Popis: | In this paper, the centrality dependent $\Zn$ and $\Wpm$ production and the isospin effect in $\Wpm$ production are investigated with a parton and hadron cascade model PACIAE in Pb--Pb collisions at $\sNN=5.02$~TeV. ALICE data of $\Zn$ production in Pb--Pb collisions at $\sNN=5.02$~TeV are found to be reproduced fairly well. The prediction on $\Wpm$ production in the same collision system is given as well. An interesting isospin effect is observed in exploring the charge asymmetry between $\Wp$ and $\Wm$ as a function of the asymmetry between number of valence $u$- and $d$-quarks varied from small to large collision systems at center-of-mass energy 5.02 TeV. The results serve as a important benchmarks for understanding the initial conditions of heavy-ion collisions. Comment: arXiv admin note: text overlap with arXiv:2002.00344 |
| Databáze: | arXiv |
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