论文标题
lorentz-covariant非局部碰撞项，用于自旋1/2颗粒
Lorentz-covariant nonlocal collision term for spin-1/2 particles
论文作者
论文摘要
我们使用de Groot，van Leeuwen和van Weert的Wigner-runction方法和Kadanoff-Baym方程在$ t $ -matrix近似近似的$ t $ matrix近似中，使用$ t $ -matrix近似的wigner-unction方法来重新审视自旋1/2颗粒的非局部碰撞项的推导。与以前的计算相反，我们的结果保持了非局部碰撞项的完全洛伦兹协方差。
We revisit the derivation of the nonlocal collision term in the Boltzmann equation for spin-1/2 particles, using both the Wigner-function approach by de Groot, van Leeuwen, and van Weert, and the Kadanoff-Baym equation in $T$-matrix approximation. Contrary to previous calculations, our results maintain full Lorentz covariance of the nonlocal collision term.
