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arXiv 1412.2913nucl-th
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重离子碰撞中守恒电荷的高阶涨落

Higher order fluctuations of conserved charges in heavy ion collisions

Miki Sakaida, Masayuki Asakawa, Masakiyo Kitazawa

摘要:

通过研究强子介质中守恒电荷累积量的时间演化,研究了有限快度窗口内相对论重离子碰撞中整体电荷守恒对守恒电荷累积量的影响。由于强子级带电粒子的扩散距离有限,整体电荷守恒并不影响ALICE观测到的净电荷涨落的实验结果。

英文摘要:

We investigate the effect of the global charge conservation on the cumulants of conserved charges in relativistic heavy ion collisions in a finite rapidity window by studying the time evolution of cumulants in the hadronic medium. It is argued that the global charge conservation does not affect the experimental result of the net-electric charge fluctuation observed by ALICE, because of the finite diffusion distance of charged particles in the hadronic stage.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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