论文标题
强子屈服中涡旋 - 胶状等离子体的签名
Signatures of the vortical quark-gluon plasma in hadron yields
论文作者
论文摘要
我们研究了重型离子碰撞中产生的夸张夸克 - 格鲁隆等离子体的强子产生。基于夸克钙化和统计强化模型，我们表明，旋转成分的总强体产量通过二次依赖性的局部涡度增强。增强因子的数量为几个百分比，并且在当前的实验敏感性中可能可检测到。我们还表明，对于具有较大自旋的黑龙来说，这种效果更强，因此提出了局部涡度的新签名，可以通过具有不同旋转的不同强体物种（例如$ ϕ $ and $η'$）检测到的局部涡度。强子产量的涡度依赖性似乎很健壮，并且在两个强子生产机制中都具有一致的预测，以估计重型离子碰撞的涡度强度的合理值。
We investigate the hadron production from the vortical quark-gluon plasma created in heavy-ion collisions. Based on the quark-coalescence and statistical hadronization models, we show that total hadron yields summed over the spin components are enhanced by the local vorticity with quadratic dependence. The enhancement factor amounts to be a few percent and may be detectable within current experimental sensitivities. We also show that the effect is stronger for hadrons with larger spin, and thus propose a new signature of the local vorticity, which may be detected by the yield ratio of distinct hadron species having different spins such as $ϕ$ and $η'$. The vorticity dependence of hadron yields seems robust, with consistent predictions in both of the hadron production mechanisms for reasonable values of the vorticity strength estimated for heavy-ion collisions.
