Temperature and density effects on the nucleon mass splitting

Journal Article · Mon Apr 01 00:00:00 EST 1996 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.53.1911· OSTI ID:282153

Christiansen, H R; Epele, L N; Fanchiotti, H; Garcia Canal, C A ^[1]

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1. Departamento de Fisica, Universidad Nacional de La Plata C.C. 67, (1900) La Plata (Argentina)

The finite temperature and finite density dependence of the neutron-proton mass difference is analyzed in a purely hadronic framework where the {rho}-{omega} mixing is crucial for this isospin symmetry breakdown. The problem is handled within thermofield dynamics. The present results, consistent with partial chiral and charge symmetry restoration, improve the experimental data fit for the energy difference between mirror nuclei. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 282153
• Journal Information: Physical Review, C, Vol. 53, Issue 4; Other Information: PBD: Apr 1996
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
NUCLEONS
MASS DIFFERENCE
TEMPERATURE DEPENDENCE
DENSITY
RHO-770 MESONS
OMEGA-1420 MESONS
MIXING
ISOSPIN
SYMMETRY BREAKING
CHIRAL SYMMETRY
C INVARIANCE
MIRROR NUCLEI