论文标题
高能重型离子碰撞中已鉴定颗粒的椭圆流中合并总和规则的证据
Evidence of Coalescence Sum Rule in Elliptic Flow of Identified Particles in High-energy Heavy-ion Collisions
论文作者
论文摘要
高能重型离子碰撞的主要目的是研究脱合Quark Gluon等离子体（QGP）的特性，例如党的集体性。组成夸克的集体运动可以从聚结框架内已鉴定的哈子的各向异性流量测量中得出。根据已发布的椭圆流结果（$ v_2 $），我们将使用$ k^{\ pm} $，$ p $，$ {\ bar p} $，$λ$和$ {\barλ} $测试合并总和规则Quarks以及10-40 \％au+au碰撞的$ u（d）$ quarks在$ \ sqrt {s _ {\ rm nn}} = $ 7.7、11.5、14.5、14.5、19.6、27、27、39、39、39和62.4 GEV。我们还尝试将$ v_2 $差异链接到$π^ - $和$π^+$之间的$ v_2 $与$ u $和$ d $ quarks的不同数字中的初始金离子中的不同数字，并将多态hadro子的$ v_2 $测量与$ v_2 $的测量与$ ϕ $，$ ϕ $，$ω^\ pm $和$和$和$ $和$ $和$ $的$ V_2 $测量。
The major goal of high-energy heavy-ion collisions is to study the properties of the deconfined quark gluon plasma (QGP), such as partonic collectivity. The collective motion of constituent quarks can be derived from the anisotropic flow measurements of identified hadrons within the coalescence framework. Based on published results of elliptic flow ($v_2$), we shall test the coalescence sum rule using $K^{\pm}$, $p$, ${\bar p}$, $Λ$ and ${\bar Λ}$, and further extract $v_2$ values for produced $u$($d$, $\bar u$, $\bar d$), $s$ and $\bar s$ quarks, as well as transported $u(d)$ quarks in 10-40\% Au+Au collisions at $\sqrt{s_{\rm NN}}=$ 7.7, 11.5, 14.5, 19.6, 27, 39 and 62.4 GeV. We also attempt to link the $v_2$ difference between $π^-$ and $π^+$ to the different numbers of $u$ and $d$ quarks in the initial gold ions, and to relate the $v_2$ measurements of multi-strange hadrons to the formation times of $ϕ$, $Ω^\pm$ and $Ξ^+$.
