Self-consistent solution of the Schwinger-Dyson equations for the nucleon and meson propagators

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorBracco, M. E.-
Autor(es): dc.creatorEiras, A.-
Autor(es): dc.creatorKrein, G.-
Autor(es): dc.creatorWilets, L.-
Data de aceite: dc.date.accessioned2025-08-21T23:43:11Z-
Data de disponibilização: dc.date.available2025-08-21T23:43:11Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued1994-01-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1103/PhysRevC.49.1299-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/223839-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/223839-
Descrição: dc.descriptionThe Schwinger-Dyson equations for the nucleon and meson propagators are solved self-consistently in an approximation that goes beyond the Hartree-Fock approximation. The traditional approach consists in solving the nucleon Schwinger-Dyson equation with bare meson propagators and bare meson-nucleon vertices; the corrections to the meson propagators are calculated using the bare nucleon propagator and bare nucleon-meson vertices. It is known that such an approximation scheme produces the appearance of ghost poles in the propagators. In this paper the coupled system of Schwinger-Dyson equations for the nucleon and the meson propagators are solved self-consistently including vertex corrections. The interplay of self-consistency and vertex corrections on the ghosts problem is investigated. It is found that the self-consistency does not affect significantly the spectral properties of the propagators. In particular, it does not affect the appearance of the ghost poles in the propagators. © 1994 The American Physical Society.-
Descrição: dc.descriptionInstituto de Física Teórica, Universidade Estadual Paulista, Rua Pamplona, 145-01405-900 Sao Paulo, SP-
Descrição: dc.descriptionDepartment of Physics, FM-15, University of Washington, Seattle, WA 98195-
Descrição: dc.descriptionInstituto de Física Teórica, Universidade Estadual Paulista, Rua Pamplona, 145-01405-900 Sao Paulo, SP-
Formato: dc.format1299-1308-
Idioma: dc.languageen-
Relação: dc.relationPhysical Review C-
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Título: dc.titleSelf-consistent solution of the Schwinger-Dyson equations for the nucleon and meson propagators-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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