Relativistic dissipative spin hydrodynamics from kinetic theory with a nonlocal collision term

Autor:	Nora Weickgenannt, David Wagner, Enrico Speranza, Dirk H. Rischke
Rok vydání:	2022
Předmět:	Nuclear Theory (nucl-th) Nuclear Theory FOS: Physical sciences
Zdroj:	Physical Review D. 106
ISSN:	2470-0029 2470-0010
DOI:	10.1103/physrevd.106.l091901
Popis:	We derive relativistic dissipative spin hydrodynamics from kinetic theory featuring a nonlocal collision term using the method of moments. In this framework, the components of the spin tensor are dynamical variables which obey relaxation-type equations. We find that the corresponding relaxation times are determined by the local part of the collision term, while the nonlocal part contributes to the Navier-Stokes terms in these equations of motion. The spin relaxation time scales are comparable to those of the usual dissipative currents. Finally, the Navier-Stokes limit of the Pauli-Lubanski vector receives contributions proportional to the shear tensor of the fluid, which implies that the polarization of hadrons observed in heavy-ion collisions is influenced by dissipative effects. 7 pages, 1 figure
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::380c18f63132fb957903189fe81fd08d https://doi.org/10.1103/physrevd.106.l091901 Zobrazit plný text záznamu