标题： 手征对称的热QCD中的新兴规范自旋张量 显示英文标题

标题： Emerging canonical spin tensor in the chiral symmetric hot QCD

摘要： 自旋张量是相对论自旋流体力学的基本概念，但由于伪规范对称性，其定义存在歧义。 我们证明在具有自旋-自旋相互作用的Nambu-Jona-Lasinio模型中，这种歧义得到了解决。 我们证明该理论的平均场极限等价于具有规范自旋张量的非耗散自旋流体力学。 最后，我们建议通过进行极化离子碰撞实验来探测自旋势。 显示英文摘要

摘要： The spin tensor is fundamental to relativistic spin hydrodynamics, but its definition is ambiguous due to the pseudogauge symmetry. We show that in the Nambu-Jona-Lasinio model with spin-spin interactions this ambiguity is resolved. We prove that the mean field limit of this theory is equivalent to the non-dissipative spin hydrodynamics with a canonical spin tensor. Finally, we propose to detect the spin potential by performing experiments with collisions of polarized ions.