arXiv 1707.091922017-07nucl-ex

RHIC和LHC能重离子碰撞中轻核椭圆流的研究进展

A Review of Elliptic Flow of Light Nuclei in Heavy-Ion Collisions at RHIC and LHC Energies

Md. Rihan Haque, Chitrasen Jena, Bedangadas Mohanty

备注：: 11 pages, 10 figures

摘要：

本文综述了RHIC和LHC实验中轻核（$d$、$\bar{d}$、$t$、$^{3}\rm He$和$^{3}\overline{\rm He}$）椭圆流（$v_{2}$）的测量。本文对轻（反）核$v_{2}$与（反）质子进行了比较。我们观察到类似的趋势，轻核$v_{2}$中确定的强子$v_{2}$的一般观察，如（$p_{\rm T}$）的依赖性，低$p_{\rm T}$质量排序，和中心依赖性。比较了不同碰撞能量下质子和反质子的核和反核$v_{2}$的差异以及相应的$v_{2}$的差异。它们描述了类似的行为。我们还比较了轻核$v_{2}$的数据，各种理论模型，如爆炸波和合并。然后，我们提出了一个预测的$v_{2}$为$^{3}\rm He$和$^{4}\rm He$使用聚结和爆炸波模型。

英文摘要：

We present a review of the measurements of elliptic flow ($v_{2}$) of light nuclei ($d$,$\bar{d}$, $t$, $^{3}\rm He$, and $^{3}\overline{\rm He}$) from the RHIC and LHC experiments. Light (anti)nuclei $v_{2}$ have been compared with that of (anti)proton. We observed a similar trend in light nuclei $v_{2}$ to that in identified hadron $v_{2}$ with respect to the general observations such as ($p_{\rm T}$) dependence, low $p_{\rm T}$ mass ordering, and centrality dependence. We also compared the difference of nuclei and antinuclei $v_{2}$ with the corresponding difference of $v_{2}$ of proton and antiproton at various collision energies. Qualitatively they depict similar behavior. We also compare the data on light nuclei $v_{2}$ to various theoretical models such as blast-wave and coalescence. We then present a prediction of $v_{2}$ for $^{3}\rm He$ and $^{4}\rm He$ using coalescence and blast-wave models.

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英文摘要：

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