Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1996-02-05
Phys.Rev.C53:1911-1916,1996
Physics
High Energy Physics
High Energy Physics - Phenomenology
17 pages, revtex file
Scientific paper
10.1103/PhysRevC.53.1911
The finite temperature and finite density dependence of the neutron-proton mass difference is analysed in a purely hadronic framework where the $\rho-\omega $ mixing is crucial for this isospin symmetry breakdown. The problem is handled within Thermo Field Dynamics. The present results, consistent with partial chiral and charge symmetry restoration, improve the experimental data fit for the energy difference between mirror nuclei.
Christiansen Hugo R.
Epele Luis N.
Fanchiotti Huner
Garc{\'ı}a Canal C. A.
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