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arXiv · 2208.01955

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

Nora Weickgenannt·David Wagner·Enrico Speranza·Dirk H. Rischke
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Abstract

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.

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Nora Weickgenannt, David Wagner, Enrico Speranza, Dirk H. Rischke. 2022-08-03. Relativistic dissipative spin hydrodynamics from kinetic theory with a nonlocal collision term. https://doi.org/10.1103/physrevd.106.l091901

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