Vacuum polarization effects in hyperon rich dense matter -- a nonperturbative treatment

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dc.creatorMishra, Amruta
dc.creatorPanda, P. K.
dc.creatorGreiner, W.
dc.date2000-12-31
dc.date.accessioned2026-07-07T10:54:38Z
dc.date.available2026-07-07T10:54:38Z
dc.descriptionWe derive the equation of state (EOS) for electrically charge neutral dense matter using Quantum Hadrodynamics (QHD) model. This is carried out in a nonperturbative 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 equation of state for the hyperonic matter. The formalism also allows us to do a self consistent calculation of the in-medium sigma meson mass. The effects of such quantum corrections on the composition of charge neutral dense matter is considered. The effect of the resulting EOS on the structure of the neutron stars is also studied.
dc.description26 pages, Latex (ReVTeX style)
dc.identifierhttps://arxiv.org/abs/nucl-th/0101006
dc.identifierhttp://arxiv.org/abs/nucl-th/0101006
dc.identifierJ.Phys.G28:67-83,2002
dc.identifierdoi:10.1088/0954-3899/28/1/305
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/185860
dc.subjectNuclear Theory
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Phenomenology
dc.titleVacuum polarization effects in hyperon rich dense matter -- a nonperturbative treatment
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