Work

Relativistic spin hydrodynamics with momentum- and spin-dependent relaxation time

Year: 2025

Type: article

Abstract: Using the extended relaxation time approximation along with the theory of semiclassical spin, a framework of relativistic dissipative spin hydrodynamics is developed such that the relaxation time can depend on the momenta and spin of the constituent spin-1/2 particles. A general definition of the fluid four-velocity is considered, allowing the theory to be valid in a general frame and matching conditions. Consequently, the frame-invariant bulk, shear, particle diffusion, and spin transport coefficients are obtained, showing that the evolution of fluid remains unaffected by spin in the limit of small polarization as was the case where the relaxation time was independent of spin or momentum.

Source: Physical Review C

DOI: 10.1103/physrevc.111.034909

Author: Samapan Bhadury

Institution: Jagiellonian University

Language: English

Topic: High-Energy Particle Collisions Research

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funder: Instytut Botaniki, Uniwersytet Jagielloński

Award: G5559437177