Structure of the Vacuum in Nuclear Matter - A Nonperturbative Approach

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dc.creatorMishra, A.
dc.creatorPanda, P. K.
dc.creatorSchramm, S.
dc.creatorReinhardt, J.
dc.creatorGreiner, W.
dc.date1997-02-04
dc.date.accessioned2026-07-07T11:11:04Z
dc.date.available2026-07-07T11:11:04Z
dc.descriptionWe compute the vacuum polarisation correction to the binding energy of nuclear matter in the Walecka model using a nonperturbative approach. We first study such a contribution as arising from a ground state structure with baryon-antibaryon condensates. This yields the same results as obtained through the relativistic Hartree approximation of summing tadpole diagrams for the baryon propagator. Such a vacuum is then generalized to include quantum effects from meson fields through scalar-meson condensates. The method is applied to study properties of nuclear matter and leads to a softer equation of state giving a lower value of the incompressibility than would be reached without quantum effects. The density dependent effective sigma mass is also calculated including such vacuum polarisation effects.
dc.description26 pages including 5 eps files, uses revtex style; PACS number: 21.65.+f,21.30.+y
dc.identifierhttps://arxiv.org/abs/nucl-th/9702008
dc.identifierhttp://arxiv.org/abs/nucl-th/9702008
dc.identifierPhys.Rev.C56:1380-1388,1997
dc.identifierdoi:10.1103/PhysRevC.56.1380
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/190972
dc.subjectNuclear Theory
dc.subjectHigh Energy Physics - Phenomenology
dc.titleStructure of the Vacuum in Nuclear Matter - A Nonperturbative Approach
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