Charge balance functions reflect the evolution of charged pair correlations throughout the stages of pair production, dynamical diffusion, and hadronization in heavy-ion collisions. Microscopic modeling of these correlations in the full collision volume shows that the balance functions are sensitive to the diffusivity of light quarks when studied as functions of relative azimuthal angle. By restricting our analysis to $K^{+}{K}^{-}$ and $p\bar{p}$ pairs, we find that the diffusivity of light quarks, a fundamental property not currently well understood, can be constrained by experimental measurement.

中文翻译：

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通过实验确定夸克的扩散率

电荷平衡函数反映了重离子碰撞过程中成对产生，动态扩散和强子化过程中带电对相关性的演变。在整个碰撞体积中这些相关关系的微观模型表明，当作为相对方位角的函数进行研究时，平衡函数对光夸克的扩散率敏感。通过限制我们的分析${ķ}^{+}{ķ}^{-}$ 和 $p\stackrel{〜}{p}$ 对，我们发现光夸克的扩散性（一种目前尚不为人所知的基本特性）可以通过实验测量来约束。