{ "id": "1112.6430", "version": "v2", "published": "2011-12-29T20:57:20.000Z", "updated": "2012-01-25T18:58:31.000Z", "title": "Strangeness in the cores of neutron stars", "authors": [ "R. Lastowiecki", "D. Blaschke", "H. Grigorian", "S. Typel" ], "comment": "6 pages, 2 figures, contribution to \"Strangeness in Quark Matter 2011\", Cracow, September 18-24, 2011", "journal": "Acta Phys. Pol. B Proc. Suppl. 5, 535 - 540 (2012)", "doi": "10.5506/APhysPolBSupp.5.535", "categories": [ "nucl-th", "astro-ph.SR", "hep-ph" ], "abstract": "The measurement of the mass 1.97 +/- 0.04 M_sun for PSR J1614-2230 provides a new constraint on the equation of state and composition of matter at high densities. In this contribution we investigate the possibility that the dense cores of neutron stars could contain strange quarks either in a confined state (hyperonic matter) or in a deconfined one (strange quark matter) while fulfilling a set of constraints including the new maximum mass constraint. We account for the possible appearance of hyperons within an extended version of the density-dependent relativistic mean-field model, including the phi-meson interaction channel. Deconfined quark matter is described by the color superconducting three-flavor NJL model.", "revisions": [ { "version": "v2", "updated": "2012-01-25T18:58:31.000Z" } ], "analyses": { "subjects": [ "12.38.Lg", "97.60.Jd", "26.60.Kp", "12.38.Mh" ], "keywords": [ "neutron stars", "strangeness", "color superconducting three-flavor njl model", "density-dependent relativistic mean-field model", "strange quark matter" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 6, "language": "en", "license": "arXiv", "status": "editable", "inspire": 1082996, "adsabs": "2011arXiv1112.6430L" } } }