dorsal/arxiv
View SchemaConstraints on the high-density nuclear equation of state from the phenomenology of compact stars and heavy-ion collisions
| Authors | T. Klahn, D. Blaschke, S. Typel, E. N. E. van Dalen, A. Faessler, C. Fuchs, T. Gaitanos, H. Grigorian, A. Ho, E. E. Kolomeitsev, M. C. Miller, G. Ropke, J. Trumper, D. N. Voskresensky, F. Weber, H. H. Wolter |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0602038 |
| URL | https://arxiv.org/abs/nucl-th/0602038 |
| DOI | 10.1103/PhysRevC.74.035802 |
| Journal | Phys.Rev.C74:035802,2006 |
Abstract
A new scheme for testing nuclear matter equations of state (EsoS) at high densities using constraints from neutron star phenomenology and a flow data analysis of heavy-ion collisions is suggested. An acceptable EoS shall not allow the direct Urca process to occur in neutron stars with masses below $1.5~M_{\odot}$, and also shall not contradict flow and kaon production data of heavy-ion collisions. Compact star constraints include the mass measurements of 2.1 +/- 0.2 M_sun (1 sigma level) for PSR J0751+1807, of 2.0 +/- 0.1 M_sun from the innermost stable circular orbit for 4U 1636-536, the baryon mass - gravitational mass relationships from Pulsar B in J0737-3039 and the mass-radius relationships from quasiperiodic brightness oscillations in 4U 0614+09 and from the thermal emission of RX J1856-3754. This scheme is applied to a set of relativistic EsoS constrained otherwise from nuclear matter saturation properties with the result that no EoS can satisfy all constraints simultaneously, but those with density-dependent masses and coupling constants appear most promising.
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"abstract": "A new scheme for testing nuclear matter equations of state (EsoS) at high\ndensities using constraints from neutron star phenomenology and a flow data\nanalysis of heavy-ion collisions is suggested. An acceptable EoS shall not\nallow the direct Urca process to occur in neutron stars with masses below\n$1.5~M_{\\odot}$, and also shall not contradict flow and kaon production data of\nheavy-ion collisions. Compact star constraints include the mass measurements of\n2.1 +/- 0.2 M_sun (1 sigma level) for PSR J0751+1807, of 2.0 +/- 0.1 M_sun from\nthe innermost stable circular orbit for 4U 1636-536, the baryon mass -\ngravitational mass relationships from Pulsar B in J0737-3039 and the\nmass-radius relationships from quasiperiodic brightness oscillations in 4U\n0614+09 and from the thermal emission of RX J1856-3754. This scheme is applied\nto a set of relativistic EsoS constrained otherwise from nuclear matter\nsaturation properties with the result that no EoS can satisfy all constraints\nsimultaneously, but those with density-dependent masses and coupling constants\nappear most promising.",
"arxiv_id": "nucl-th/0602038",
"authors": [
"T. Klahn",
"D. Blaschke",
"S. Typel",
"E. N. E. van Dalen",
"A. Faessler",
"C. Fuchs",
"T. Gaitanos",
"H. Grigorian",
"A. Ho",
"E. E. Kolomeitsev",
"M. C. Miller",
"G. Ropke",
"J. Trumper",
"D. N. Voskresensky",
"F. Weber",
"H. H. Wolter"
],
"categories": [
"nucl-th",
"astro-ph",
"hep-ph"
],
"doi": "10.1103/PhysRevC.74.035802",
"journal_ref": "Phys.Rev.C74:035802,2006",
"title": "Constraints on the high-density nuclear equation of state from the phenomenology of compact stars and heavy-ion collisions",
"url": "https://arxiv.org/abs/nucl-th/0602038"
},
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