Rho-omega mixing and neutron-proton self-energies in the Walecka model

Nenhuma Miniatura disponível

Data

1992-12-01

Orientador

Coorientador

Pós-graduação

Curso de graduação

Título da Revista

ISSN da Revista

Título de Volume

Editor

Tipo

Artigo

Direito de acesso

Acesso restrito

Resumo

We use the Walecka model to investigate the influence of the charge symmetry breaking ρ0-ω mixing interaction on the neutron-proton self-energy difference in nuclear matter. Using 2mρ〈ρ0|H|ω〉 = -4500 MeV2, and employing the Dirac-Hartree-Fock approximation, we find that the neutron-proton self-energy difference is a decreasing function of the nuclear matter density, and that it has a value of the order of 700 keV at the normal density. The results indicate that the Nolen-Schiffer anomaly might be explained by means of relativistic nuclear models in a similar way as it is explained by means of non-relativistic models.

Descrição

Palavras-chave

Idioma

Inglês

Como citar

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, v. 294, n. 1, p. 7-13, 1992.

Itens relacionados

Financiadores