| Issue |
EPJ Web Conf.
Volume 276, 2023
The 20th International Conference on Strangeness in Quark Matter (SQM 2022)
|
|
|---|---|---|
| Article Number | 01011 | |
| Number of page(s) | 9 | |
| Section | Bulk Matter Phenomena, QCD Phase Diagram, and Critical Point | |
| DOI | https://doi.org/10.1051/epjconf/202327601011 | |
| Published online | 01 March 2023 | |
https://doi.org/10.1051/epjconf/202327601011
Polarization in heavy ion collisions: A theoretical review
Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
* e-mail: mbuzz@iastate.edu
Published online: 1 March 2023
In these proceedings I discuss the recent progress in the theory of spin polarization in relativistic fluids. To date, a number of studies have begun to examine the impact of the shear tensor on the local spin polarization and whether this contribution can restore agreement between the measurements and the predictions obtained from a polarization induced by the gradients of the plasma. I present the derivation of the spin polarization vector of a fermion at local thermal equilibrium and I discuss the role of pseudo-gauge transformations and of dissipative effects. I list what we can learn from the polarization measured at lower energies. Finally, I discuss possible applications of spin polarization measurements in relativistic heavy ion collisions.
© The Authors, published by EDP Sciences, 2023
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