Publicação: Vacuum polarization effects in hyperon-rich dense matter - a nonperturbative treatment
Carregando...
Data
Autores
Orientador
Coorientador
Pós-graduação
Curso de graduação
Título da Revista
ISSN da Revista
Título de Volume
Editor
Iop Publishing Ltd
Tipo
Artigo
Direito de acesso
Acesso restrito
Resumo
We derive the equation of state (EOS) for electrically charged neutral dense matter using the quantum hadrodynamics (QHD) model. This is carried out in a non-perturbative manner including quantum corrections for baryons through a realignment of vacuum with baryon-antibaryon condensates. This yields the results of relativistic Hartree approximation of summing over baryonic tadpole diagrams. The quantum corrections from the scalar meson is also taken into account in a similar way. This leads to a softening of the EOS for the hyperonic matter. The formalism also allows Lis to make a self-consistent calculation of the in-medium sigma meson mass. The effects of such quantum corrections on the composition of charged neutral dense matter is considered. The effect of the resulting EOS on the structure of neutron stars is also studied.
Descrição
Palavras-chave
Idioma
Inglês
Como citar
Journal of Physics G-nuclear and Particle Physics. Bristol: Iop Publishing Ltd, v. 28, n. 1, p. 67-83, 2002.