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

Simple item page
dc.creatorBracco, M. E.
dc.creatorEiras, A.
dc.creatorKrein, G.
dc.creatorWilets, L.
dc.date1993-07-07
dc.date.accessioned2026-07-07T11:15:04Z
dc.date.available2026-07-07T11:15:04Z
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.
dc.descriptionREVTEX, 7 figures (available upon request), IFT-P.037/93, DOE/ER/40427-12-N93
dc.identifierhttps://arxiv.org/abs/nucl-th/9307009
dc.identifierhttp://arxiv.org/abs/nucl-th/9307009
dc.identifierPhys.Rev.C49:1299-1308,1994
dc.identifierdoi:10.1103/PhysRevC.49.1299
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/192281
dc.subjectNuclear Theory
dc.titleSelf-consistent solution of the Schwinger-Dyson equations for the nucleon and meson propagators
dc.typetext

Files

Collections

arXiv