论文标题
$ f_ {0}（980）$ eLLIPTIC FLOW 200 GEV AU+AU COLLISIONS的NCQ缩放量
NCQ scaling of $f_{0}(980)$ elliptic flow in 200 GeV Au+Au collisions by STAR and its constituent quark content
论文作者
论文摘要
寻找异国情调的颗粒并研究其特性，使我们对量子染色体动力学（QCD）的理解进一步了解。 $ f_ {0} $（980）共振是一种异国情调的状态，在相对论重的离子碰撞中，产量相对较高，主要腐烂到$ππ$。当前，$ f_ {0} $（980）的结构和夸克内容是未知的，理论上的几个预测是$ q \ overline {q} $ state，a $ qq \ overline {q} \ overline {q} \ overline {q} $ state，$ k \ overline {$ k \ overline {k \ overline {k k} $分子状态或gluoonium或gluoonium或gluonium或gluonium或gluonium。我们报告了第一个$ f_ {0} $（980）椭圆流（$ v_ {2} $）测量来自200 Gev au+au collisisions at star。检查了$ v_ {2} $的横向动量依赖性，并将其与其他哈隆（重子和介子）的横向动量依赖性。组成夸克（NCQ）缩放的经验数用于研究$ f_ {0} $（980）的组成夸克内容，该内容可能在QCD中有可能解决一个重要问题。
Searching for exotic state particles and studying their properties have furthered our understanding of quantum chromodynamics (QCD). The $f_{0}$(980) resonance is an exotic state with relatively high production rate in relativistic heavy-ion collisions, decaying primarily into $ππ$. Currently, the structure and quark content of the $f_{0}$(980) are unknown with several predictions from theory being a $q\overline{q}$ state, a $qq\overline{q}\overline{q}$ state, a $K\overline{K}$ molecule state, or a gluonium state. We report the first $f_{0}$(980) elliptic flow ($v_{2}$) measurement from 200 GeV Au+Au collisions at STAR. The transverse momentum dependence of $v_{2}$ is examined and compared to those of other hadrons (baryons and mesons). The empirical number of constituent quark (NCQ) scaling is used to investigate the constituent quark content of $f_{0}$(980), which may potentially address an important question in QCD.
