Derivation of the nonlocal collision term in the relativistic Boltzmann equation for massive spin-1/2 particles from quantum field theory

no code implementations • 8 Mar 2021 • Nora Weickgenannt, Enrico Speranza, Xin-li Sheng, Qun Wang, Dirk H. Rischke

We derive the Boltzmann equation and the collision kernel for massive spin-1/2 particles, using the Wigner-function formalism and employing an expansion in powers of $\hbar$.

Nuclear Theory High Energy Physics - Phenomenology

Spin tensor and pseudo-gauges: from nuclear collisions to gravitational physics

no code implementations • 30 Jun 2020 • Enrico Speranza, Nora Weickgenannt

The relativistic treatment of spin is a fundamental subject which has an old history.

Nuclear Theory High Energy Physics - Phenomenology High Energy Physics - Theory