论文标题
$^{12} $ c + $^{197} $ au碰撞在200 GEV}中对汉伯里 - 布朗 - 折线相关性的聚类结构效应
Clustering structure effect on Hanbury-Brown-Twiss correlation in $^{12}$C + $^{197}$Au collisions at 200 GeV}
论文作者
论文摘要
Through $^{12}$C + $^{197}$Au collisions at $\sqrt{s_{NN}} =$ 200 GeV using a multiphase transport (AMPT) model, the azimuthal angle dependences of the Hanbury Brown-Twiss (HBT) radii relative to the second- and third-order participant plane from $π$-$π$ correlations are discussed.考虑了$^{12} $ c的三种初始几何配置，即考虑三个 - $α$ -cluster三角形，三个$α$ cluster链和核子的伍兹 - 撒克逊人分布，并研究了它们对相关性的影响。第三阶HBT Radii $ r_ {o（s），3}^2/r_ {o（s），2}^2 $的比率被证明是三种配置的明确探测。此外，这项工作介绍了方位角依赖的HBT Radii的耐药时间演变。从本研究中，可以从冻结时从相同粒子中获得的HBT相关性能够提供以前提出的集体流量的不同初始配置的信息。
Through $^{12}$C + $^{197}$Au collisions at $\sqrt{s_{NN}} =$ 200 GeV using a multiphase transport (AMPT) model, the azimuthal angle dependences of the Hanbury Brown-Twiss (HBT) radii relative to the second- and third-order participant plane from $π$-$π$ correlations are discussed. Three initial geometric configurations of $^{12}$C, namely three-$α$-cluster triangle, three-$α$-cluster chain and Woods-Saxon distribution of nucleons, are taken into account, and their effects on the correlations are investigated. The ratio of the third- to the second-order HBT radii $R_{o(s),3}^2/R_{o(s),2}^2$ is shown to be a clear probe for three configurations. In addition, this work presents the hadronic rescattering time evolution of the azimuthally dependent HBT radii. From the present study, one can learn that the HBT correlation from identical particles at freeze-out is able to provide the information of different initial configurations as collective flow proposed before.
