Global Λ polarization in moderately relativistic nuclear collisions
Abstract
Predictions are made for the global polarization of Λ hyperons in Au +Au collisions at moderately relativistic collision energies, 2.4 ≤√{sN N}≤ 11 GeV. These are based on the thermodynamic approach to the global polarization incorporated into the model of the three-fluid dynamics. Centrality dependence of the polarization is studied. It is predicted that the polarization reaches a maximum or a plateau (depending on the equation of state and centrality) at √{sN N}≈ 3 GeV. It is found that the global polarization increases with increasing width of the rapidity window around the midrapidity.
- Publication:
-
Physical Review C
- Pub Date:
- March 2021
- DOI:
- 10.1103/PhysRevC.103.L031903
- arXiv:
- arXiv:2012.07597
- Bibcode:
- 2021PhRvC.103c1903I
- Keywords:
-
- Nuclear Theory;
- High Energy Physics - Phenomenology;
- Nuclear Experiment
- E-Print:
- 5 pages, 4 figures, extended version accepted by PRC