dorsal/arxiv
View SchemaProperties of a protoneutron star in the Effective Field Theory
| Authors | Ilona Bednarek, Ryszard Manka |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0601022 |
| URL | https://arxiv.org/abs/nucl-th/0601022 |
| DOI | 10.1103/PhysRevC.73.045804 |
| Journal | Phys.Rev.C73:045804,2006 |
Abstract
The complete form of the equation of state of strangeness rich proto-neutron and neutron star matter has been obtained. The currently obtained lower value of the Lambda Lambda potential at the level of 5 MeV permits the existence of additional parameter set which reproduces the weaker Lambda Lambda interaction. The effects of the strength of hyperon-hyperon interactions on the equations of state constructed for the chosen parameter set have been analyzed. It has been shown that replacing the strong Y-Y interaction model by the weak one introduces large differences in the composition of a proto-neutron star matter both in the strange and non-strange sectors. Also concentrations of neutrinos have been significantly altered in proto-neutron star interiors. The performed calculations have indicated that the change of the hyperon-hyperon coupling constants affects the value of the proto-neutron star maximum mass.
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"abstract": "The complete form of the equation of state of strangeness rich proto-neutron\nand neutron star matter has been obtained. The currently obtained lower value\nof the Lambda Lambda potential at the level of 5 MeV permits the existence of\nadditional parameter set which reproduces the weaker Lambda Lambda interaction.\nThe effects of the strength of hyperon-hyperon interactions on the equations of\nstate constructed for the chosen parameter set have been analyzed. It has been\nshown that replacing the strong Y-Y interaction model by the weak one\nintroduces large differences in the composition of a proto-neutron star matter\nboth in the strange and non-strange sectors. Also concentrations of neutrinos\nhave been significantly altered in proto-neutron star interiors. The performed\ncalculations have indicated that the change of the hyperon-hyperon coupling\nconstants affects the value of the proto-neutron star maximum mass.",
"arxiv_id": "nucl-th/0601022",
"authors": [
"Ilona Bednarek",
"Ryszard Manka"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.73.045804",
"journal_ref": "Phys.Rev.C73:045804,2006",
"title": "Properties of a protoneutron star in the Effective Field Theory",
"url": "https://arxiv.org/abs/nucl-th/0601022"
},
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