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arXiv 2408.09550nucl-thhep-phnucl-ex
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在LHC能区重离子碰撞中模拟净电荷涨落

Modeling net-charge fluctuations in heavy-ion collisions at the LHC

G. O. Ambaryan, A. S. Chernyshov, G. Kh. Eyyubova, V. L. Korotkikh, I. P. Lokhtin, S. V. Petrushanko, A. M. Snigirev, E. E. Zabrodin

AI总结:

本文利用HYDJET++模型分析LHC能区Pb+Pb碰撞净电荷涨落,通过引入正则系综净电荷守恒改进模型,更好地描述了ALICE和CMS实验数据。

摘要:

本文介绍了在HYDJET++模型框架内对LHC能区Pb+Pb碰撞净电荷涨落数据的分析。采用强强度量$D$和$Σ$以消除与系统体积涨落相关的效应。我们使用HYDJET++的两个版本进行分析:第一个是标准或默认版本,第二个是其进一步修改版本,该版本显式考虑了产生粒子电荷的逐事件守恒。在模型中引入正则系综净电荷守恒能够更好地描述ALICE和CMS合作组获得的实验数据。文中还给出了与其他模型计算结果的比较。

英文摘要:

The analysis of Pb+Pb data for net-charge fluctuations at LHC energies within the HYDJET++ model is presented. The strongly intensive quantities $D$ and $Σ$ are used to get rid of the effects related to volume fluctuations of the system. We employ two versions of the HYDJET++ for the analysis. The first one is the standard or default version, whereas the second one represents its further modification, which takes into account explicit event-by-event conservation of the electric net-charge of produced particles. Inclusion of the canonical net-charge conservation in the model allows one for better description of the experimental data obtained by the ALICE and the CMS Collaborations. Comparison with calculations of other models is also presented.

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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