Phase transitions and Bose-Einstein condensation in -nucleon matter
Nov 7, 201813 pages
Published in:
- Phys.Rev.C 99 (2019) 2, 024909
- Published: Feb 20, 2019
e-Print:
- 1811.02924 [nucl-th]
Citations per year
Abstract: (APS)
The equation of state and phase diagram of isospin-symmetric chemically equilibrated mixture of α particles and nucleons N are studied in the mean-field approximation. The model takes into account the effects of Fermi and Bose statistics for N and α, respectively. We use Skyrme-like parametrization of the mean-field potentials as functions of partial densities nα and nN, which contain both attractive and repulsive terms. Parameters of these potentials are chosen by fitting known properties of pure N and pure α matter at zero temperature. The sensitivity of results to the choice of the αN attraction strength is investigated. The phase diagram of the α−N mixture is studied with special attention paid to the liquid-gas phase transitions and the Bose-Einstein condensation of α particles. We have found two first-order phase transitions, stable and metastable, which differ significantly by the fractions of α particles. It is shown that states with α condensate are metastable.Note:
- 28 pages, 10 figures
- Relativistic Nuclear Collisions
References(0)
Figures(17)
Loading ...