论文标题

电荷依赖性横向动量及其对搜索手性磁波的影响

Charge-dependent transverse momentum and its impact on the search for the chiral magnetic wave

论文作者

Wu, Wen-Ya, Wang, Chun-Zheng, Shou, Qi-Ye, Ma, Yu-Gang, Zheng, Liang

论文摘要

使用电荷不对称($ a _ {\ rm ch} $)在重离子碰撞中寻求手性磁波(CMW)。但是,取决于电荷的横向动量($ p _ {\ rm t} $)可以作为背景起作用。使用弦片段模型,包括毕曲,我们演示了$ a _ {\ rm ch} -p _ {\ rm t} $相关性及其与本地电荷保护(LCC)的连接的来源。还讨论了$ a _ {\ rm ch} -p _ {\ rm t} $及其在各种运动学窗口中的行为的影响。这项研究为搜索CMW的搜索提供了更多的见解,并理解了夸克 - 格鲁隆等离子体的集体运动。

The chiral magnetic wave (CMW) is sought using the charge asymmetry ($A_{\rm ch}$) dependence of anisotropic flow in heavy-ion collisions. The charge dependent transverse momentum ($p_{\rm T}$), however, could play a role as a background. With the string fragmentation models, including PYTHIA, we demonstrate the origin of the $A_{\rm ch}-p_{\rm T}$ correlation and its connection with the local charge conservation (LCC). The impact of $A_{\rm ch}-p_{\rm T}$ and its behavior in varied kinematic windows are also discussed. This study provides more insights for the search for the CMW and comprehending the collective motion of the quark-gluon plasma.

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