dorsal/arxiv
View SchemaHybrid stars within a covariant, nonlocal chiral quark model
| Authors | D. B. Blaschke, D. Gomez Dumm, A. G. Grunfeld, T. Klahn, N. N. Scoccola |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0703088 |
| URL | https://arxiv.org/abs/nucl-th/0703088 |
| DOI | 10.1103/PhysRevC.75.065804 |
| Journal | Phys.Rev.C75:065804,2007 |
Abstract
We present a hybrid equation of state (EoS) for dense matter in which a nuclear matter phase is described within the Dirac-Brueckner-Hartree-Fock (DBHF) approach and a two-flavor quark matter phase is modelled according to a recently developed covariant, nonlocal chiral quark model. We show that modern observational constraints for compact star masses (M ~ 2 M_sun) can be satisfied when a small vector-like four quark interaction is taken into account. The corresponding isospin symmetric EoS is consistent with flow data analyses of heavy ion collisions and points to a deconfinement transition at about 0.55 fm^-3.
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"abstract": "We present a hybrid equation of state (EoS) for dense matter in which a\nnuclear matter phase is described within the Dirac-Brueckner-Hartree-Fock\n(DBHF) approach and a two-flavor quark matter phase is modelled according to a\nrecently developed covariant, nonlocal chiral quark model. We show that modern\nobservational constraints for compact star masses (M ~ 2 M_sun) can be\nsatisfied when a small vector-like four quark interaction is taken into\naccount. The corresponding isospin symmetric EoS is consistent with flow data\nanalyses of heavy ion collisions and points to a deconfinement transition at\nabout 0.55 fm^-3.",
"arxiv_id": "nucl-th/0703088",
"authors": [
"D. B. Blaschke",
"D. Gomez Dumm",
"A. G. Grunfeld",
"T. Klahn",
"N. N. Scoccola"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.75.065804",
"journal_ref": "Phys.Rev.C75:065804,2007",
"title": "Hybrid stars within a covariant, nonlocal chiral quark model",
"url": "https://arxiv.org/abs/nucl-th/0703088"
},
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