论文标题
中心性依赖性和同胞对$ \ wpm $和$ \ Zn $ nucleus-nucleus碰撞的$ \ snn = 5.02 $ 〜tev的效果
Centrality dependence and isospin effect on $\Wpm$ and $\Zn$ productions in nucleus-nucleus collisions at $\sNN=5.02$~TeV
论文作者
论文摘要
在本文中，与Parton和Hadron Cascade Model Paciae一起研究了$ \ wpm $生产的中心性$ \ Zn $和$ \ wpm $生产和issospin效应。 $ \ Zn $生产的Alice数据在$ \ snn = 5.02 $ 〜TEV中的pb-pb碰撞数据相当不错。也给出了同一碰撞系统中$ \ wpm $生产的预测。在探索$ \ wp $和$ \ wm $之间的电荷不对称性方面，观察到了一个有趣的同胞效应，这是价值$ u $ $ $ $ - 和$ d $ QUARKS之间的不对称性的函数，从小型到大型碰撞系统在Mass Center Center Energy中不同。结果是理解重型离子碰撞的初始条件的重要基准。
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.
