3 papers
hep-ph2026
Vector-Meson Spin Alignment from Anisotropic Quark or Hadron Coalescence
Wen-Bo Dong, Xin-Li Sheng, Yi-Liang Yin +2
The distribution of particles is highly anisotropic in the initial stage of a heavy-ion collision. In this paper we demonstrate that this anisotropy induces a sizable effect on the…
hep-ph2025
Spin density matrix for neutral mesons in a pion gas in linear response theory
Yi-Liang Yin, Wen-Bo Dong, Cong Yi +1
We calculate the spin density matrix for neutral mesons from the spectral function and thermal shear tensor by Kubo formula in the linear response theory, which contributes to…
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…