Generating tensor polarization from shear stress

Jul 3, 2022
16 pages
Published in:
  • Phys.Rev.Res. 5 (2023) 1, 013187
  • Published: Mar 17, 2023
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Abstract: (APS)
We derive an expression for the tensor polarization of a system of massive spin-1 particles in a hydrodynamic framework. Starting from quantum kinetic theory based on the Wigner-function formalism, we employ a modified method of moments which also takes into account all spin degrees of freedom. It is shown that the tensor polarization of an uncharged fluid is determined by the shear-stress tensor. In order to quantify this novel polarization effect, we provide a formula which can be used for numerical calculations of vector-meson spin alignment in relativistic heavy-ion collisions.
Note:
  • 16 pages, 1 figure, Version accepted for publication in Physical Review Research
  • polarization: tensor
  • heavy ion: scattering
  • polarization: effect
  • spin: alignment
  • spin: 1
  • numerical calculations
  • kinetic
  • vector meson
  • hydrodynamics
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