Self-consistent quantum effects in the quark meson coupling model

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dc.contributor.authorPanda, P. K. [UNESP]
dc.contributor.authorBraghin, F. L.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2014-05-27T11:20:31Z
dc.date.available2014-05-27T11:20:31Z
dc.date.issued2002-11-01
dc.description.abstractWe derive the equation of state of nuclear matter for the quark-meson coupling model taking into account quantum fluctuations of the σ meson as well as vacuum polarization effects for the nucleons. This model incorporates explicitly quark degrees of freedom with quarks coupled to the scalar and vector mesons. Quantum fluctuations lead to a softer equation of state for nuclear matter giving a lower value of incompressibility than would be reached without quantum effects. The in-medium nucleon and σ-meson masses are also calculated in a self-consistent manner. The spectral function of the σ meson is calculated and the σ mass has the value increased with respect to the purely classical approximation at high densities.en
dc.description.affiliationInst. de Fís. Teórica Universidade Estadual Paulista, Rua Pamplona 145, CEP 01405-900 São Paulo, SP
dc.description.affiliationInstituto de Física Universidade de São Paulo, Caixa Postal 66318, CEP 05315-970 São Paulo
dc.description.affiliationUnespInst. de Fís. Teórica Universidade Estadual Paulista, Rua Pamplona 145, CEP 01405-900 São Paulo, SP
dc.format.extent552071-552077
dc.identifierhttp://dx.doi.org/10.1103/PhysRevC.66.055207
dc.identifier.citationPhysical Review C - Nuclear Physics, v. 66, n. 5, p. 552071-552077, 2002.
dc.identifier.doi10.1103/PhysRevC.66.055207
dc.identifier.file2-s2.0-0036876131.pdf
dc.identifier.issn0556-2813
dc.identifier.scopus2-s2.0-0036876131
dc.identifier.urihttp://hdl.handle.net/11449/67006
dc.identifier.wosWOS:000179760200048
dc.language.isoeng
dc.relation.ispartofPhysical Review C: Nuclear Physics
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.titleSelf-consistent quantum effects in the quark meson coupling modelen
dc.typeArtigo
dcterms.licensehttp://publish.aps.org/authors/transfer-of-copyright-agreement
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Física Teórica (IFT), São Paulopt

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