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Spin-thermal shear coupling in a relativistic fluid.
- Source :
-
Physics Letters B . Sep2021, Vol. 820, pN.PAG-N.PAG. 1p. - Publication Year :
- 2021
-
Abstract
- We show that spin polarization of a fermion in a relativistic fluid at local thermodynamic equilibrium can be generated by the symmetric derivative of the four-temperature vector, defined as thermal shear. As a consequence, besides vorticity, acceleration and temperature gradient, also the shear tensor contributes to the polarization of particles in a fluid. This contribution to the spin polarization vector, which is entirely non-dissipative, adds to the well known term proportional to thermal vorticity and may thus have important consequences for the solution of the local polarization puzzles observed in relativistic heavy ion collisions. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03702693
- Volume :
- 820
- Database :
- Academic Search Index
- Journal :
- Physics Letters B
- Publication Type :
- Academic Journal
- Accession number :
- 152903496
- Full Text :
- https://doi.org/10.1016/j.physletb.2021.136519