Constraint of symmetry energy slope using neutron skins of $^{48}$Ca, $^{64}$Ni, $^{124}$Sn, and $^{208}$Pb and its impact on neutron star radius

Résumé fourni par la source

Abstract We constrain the symmetry energy slope $L$ at the saturation density using the neutron skin values of $^{48}$Ca, $^{64}$Ni, $^{124}$Sn, and $^{208}$Pb determined by various experiments. The resulting $L$ of 50(6) MeV is consistent with the world-averaged value from different observables and methodologies. Furthermore, the implications of newly constrained $L$ on the radius determinations of 1.4 solar-mass neutron stars are also discussed based on the established $R_{1.4}$-$L$ linear relationships by the DD-ME2 and TW99 EoS families.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.