{ "id": "1309.2783", "version": "v1", "published": "2013-09-11T10:39:20.000Z", "updated": "2013-09-11T10:39:20.000Z", "title": "Symmetry energy: nuclear masses and neutron stars", "authors": [ "J. M. Pearson", "N. Chamel", "A. F. Fantina", "S. Goriely" ], "comment": "10 pages, 9 figures, to appear in EPJA special volume on symmetry energy", "categories": [ "nucl-th", "astro-ph.HE" ], "abstract": "We describe the main features of our most recent Hartree-Fock-Bogoliubov nuclear mass models, based on 16-parameter generalized Skyrme forces. They have been fitted to the data of the 2012 Atomic Mass Evaluation, and favour a value of 30 MeV for the symmetry coefficient J, the corresponding root-mean square deviation being 0.549 MeV. We find that this conclusion is compatible with measurements of neutron-skin thickness. By constraining the underlying interactions to fit various equations of state of neutron matter calculated {\\it ab initio} our models are well adapted to a realistic and unified treatment of all regions of neutron stars. We use our models to calculate the composition, the equation of state, the mass-radius relation and the maximum mass. Comparison with observations of neutron stars again favours a value of J = 30 MeV.", "revisions": [ { "version": "v1", "updated": "2013-09-11T10:39:20.000Z" } ], "analyses": { "keywords": [ "neutron stars", "nuclear masses", "symmetry energy", "hartree-fock-bogoliubov nuclear mass models", "atomic mass evaluation" ], "tags": [ "journal article" ], "publication": { "doi": "10.1140/epja/i2014-14043-8", "journal": "European Physical Journal A", "year": 2014, "month": "Feb", "volume": 50, "pages": 43 }, "note": { "typesetting": "TeX", "pages": 10, "language": "en", "license": "arXiv", "status": "editable", "inspire": 1253691, "adsabs": "2014EPJA...50...43P" } } }