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 $\varphi$ and $\eta \prime$. 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.

中文翻译：

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强子产率中涡旋夸克-胶子等离子体的特征

我们研究了重离子碰撞中产生的旋涡夸克-胶子等离子体产生的强子。基于夸克聚结和统计强子化模型，我们表明，具有二次依赖性的局部涡度提高了自旋分量上的总强子产量。增强因子为百分之几，并且可以在当前的实验灵敏度范围内检测到。我们还表明，自旋更大的强子的作用更强，因此提出了局部涡度的新特征，这可以通过具有不同自旋的不同强子物种的屈服比来检测，例如$\varphi$ 和 $\eta \prime$。强子产量的涡度相关性似乎很强，在两种强子生产机制中都一致预测出重离子碰撞所估计出的涡度强度的合理值。