dorsal/arxiv
View SchemaSensitivity of neutron radii in the $"" sup 208_Pb nucleus and a neutron star to nucleon-$ sigma_-$ rho_ coupling corrections in relativistic mean field theory
| Authors | G. Shen, J. Li, G. C. Hillhouse, J. Meng |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0501010 |
| URL | https://arxiv.org/abs/nucl-th/0501010 |
| DOI | 10.1103/PhysRevC.71.015802 10.1103/PhysRevC.75.029902 |
| Journal | Phys.Rev.C71:015802,2005; Erratum-ibid.C75:029902,2007 |
Abstract
We study the sensitivity of the neutron skin thickness, $S$, in a $^{208}$Pb nucleus to the addition of nucleon-sigma-rho coupling corrections to a selection (PK1, NL3, S271, Z271) of interactions in relativistic mean field model. The PK1 and NL3 effective interactions lead to a minimum value of $S$ = 0.16 fm in comparison with the original value of $S$ = 0.28 fm. The S271 and Z271 effective interactions yield even smaller values of $S$ = 0.11 fm, which are similar to those for nonrelativistic mean field models. A precise measurement of the neutron radius, and therefore $S$, in $^{208}$Pb will place an important constraint on both relativistic and nonrelativistic mean field models. We also study the correlation between the radius of a 1.4 solar-mass neutron star and $S$.
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"abstract": "We study the sensitivity of the neutron skin thickness, $S$, in a $^{208}$Pb\nnucleus to the addition of nucleon-sigma-rho coupling corrections to a\nselection (PK1, NL3, S271, Z271) of interactions in relativistic mean field\nmodel. The PK1 and NL3 effective interactions lead to a minimum value of $S$ =\n0.16 fm in comparison with the original value of $S$ = 0.28 fm. The S271 and\nZ271 effective interactions yield even smaller values of $S$ = 0.11 fm, which\nare similar to those for nonrelativistic mean field models. A precise\nmeasurement of the neutron radius, and therefore $S$, in $^{208}$Pb will place\nan important constraint on both relativistic and nonrelativistic mean field\nmodels. We also study the correlation between the radius of a 1.4 solar-mass\nneutron star and $S$.",
"arxiv_id": "nucl-th/0501010",
"authors": [
"G. Shen",
"J. Li",
"G. C. Hillhouse",
"J. Meng"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.71.015802 10.1103/PhysRevC.75.029902",
"journal_ref": "Phys.Rev.C71:015802,2005; Erratum-ibid.C75:029902,2007",
"title": "Sensitivity of neutron radii in the $\"\" sup 208_Pb nucleus and a neutron star to nucleon-$ sigma_-$ rho_ coupling corrections in relativistic mean field theory",
"url": "https://arxiv.org/abs/nucl-th/0501010"
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