Hydrodynamics of spin currents
High Energy Physics - Theory
2021-09-01 v3 High Energy Physics - Phenomenology
Nuclear Theory
Abstract
We study relativistic hydrodynamics in the presence of a non vanishing spin chemical potential. Using a variety of techniques we carry out an exhaustive analysis, and identify the constitutive relations for the stress tensor and spin current in such a setup, allowing us to write the hydrodynamic equations of motion to second order in derivatives. We then solve the equations of motion in a perturbative setup and find surprisingly good agreement with measurements of global -hyperon polarization carried out at RHIC.
Cite
@article{arxiv.2101.04759,
title = {Hydrodynamics of spin currents},
author = {Domingo Gallegos and Umut Gursoy and Amos Yarom},
journal= {arXiv preprint arXiv:2101.04759},
year = {2021}
}
Comments
8 pages, 1 figure; v3: references added, typos corrected