Accurate nuclear symmetry energy at finite temperature within a BHF approach

Autor: Lu, Jia-Jing, Li, Fan, Li, Zeng-Hua, Chen, Chong-Yang, Burgio, G. F., Schulze, H. -J.
Rok vydání: 2020
Předmět:
Zdroj: Phys. Rev. C 103, 024307 (2021)
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevC.103.024307
Popis: We compute the free energy of asymmetric nuclear matter in a Brueckner-Hartree-Fock approach at finite temperature, paying particular attention to the dependence on isospin asymmetry. The first- and second-order symmetry energies are determined as functions of density and temperature and useful parametrizations are provided. We find small deviations from the quadratic isospin dependence and very small corresponding effects on (proto)neutron star structure.
Comment: 6 pages, 4 figures
Databáze: arXiv