2 papers
hep-ph2024
Spin alignment of vector mesons in local equilibrium by Zubarev's approach
Shi-Zheng Yang, Xin-Qing Xie, Shi Pu +2
We compute the element of the spin density matrix, denoted as and called the spin alignment, up to the second order of the gradient expansion in local equilibrium by…
hep-ph2024
Corrections from space-time dependent electromagnetic fields to Wigner functions and spin polarization
Shi-Zheng Yang, Jian-Hua Gao, Shi Pu
We have derived the Wigner equations at global equilibrium with constant vorticity but space-time dependent electromagnetic fields up to second order in semiclassical expansion. We…