论文标题
两极分化是热QCD物质违反当地平价的签名
Polarization as a signature of local parity violation in hot QCD matter
论文作者
论文摘要
我们表明，可以通过测量极化载体对动量的投影（即螺旋，最终状态巴里子的螺旋性）的投影来揭示由于相对论核冲突中的手性不平衡而造成的局部平价。所提出的方法不需要与手性磁效应那样与电磁场耦合。通过使用线性响应理论，我们表明，在存在手性不平衡的情况下，自旋1/2 baryons和anti-Baryons沿其势头沿极化以及与轴向化学势成比例的贡献。可以通过研究螺旋性方位角角相关性来检测其他奇偶校验的贡献。
We show that local parity violation due to chirality imbalance in relativistic nuclear collisions can be revealed by measuring the projection of the polarization vector onto the momentum, i.e. the helicity, of final state baryons. The proposed method does not require a coupling to the electromagnetic field, like in the Chiral Magnetic Effect. By using linear response theory, we show that, in the presence of a chiral imbalance, the spin 1/2 baryons and anti-baryons receive an additional contribution to the polarization along their momentum and proportional to the axial chemical potential. The additional, parity-breaking, contribution to helicity can be detected by studying helicity-helicity azimuthal angular correlation.
