Structure of hybrid protoneutron stars within the Nambu--Jona-Lasinio model

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dc.creatorBurgio, G. F.
dc.creatorPlumari, S.
dc.date2007-10-29
dc.date2008-03-26
dc.date.accessioned2026-07-07T11:38:24Z
dc.date.available2026-07-07T11:38:24Z
dc.descriptionWe investigate the structure of protoneutron stars (PNS) formed by hadronic and quark matter in $β$-equilibrium described by appropriate equations of state (EOS). For the hadronic matter, we use a finite temperature EOS based on the Brueckner-Bethe-Goldstone many-body theory, with realistic two- and three-body forces. For the quark sector, we employ the Nambu--Jona-Lasinio model. We find that the maximum allowed masses are comprised in a narrow range around 1.8 solar masses, with a slight dependence on the temperature. Metastable hybrid protoneutron stars are not found.
dc.description7 pages, 6 figures, revised version accepted for publication in Phys. Rev. D
dc.identifierhttps://arxiv.org/abs/0710.5384
dc.identifierhttp://arxiv.org/abs/0710.5384
dc.identifierPhys.Rev.D77:085022,2008
dc.identifierdoi:10.1103/PhysRevD.77.085022
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/199548
dc.subjectAstrophysics
dc.subjectNuclear Theory
dc.titleStructure of hybrid protoneutron stars within the Nambu--Jona-Lasinio model
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