The relation between the slope of the nuclear symmetry energy at saturation density and the neutron skin thickness is investigated. Constraints on the slope of the symmetry energy are deduced from the neutron skin data obtained in experiments with antiprotonic atoms. Two types of neutron skin are distinguished: the “surface” and the “bulk”. A combination of both types forms neutron skin in most of nuclei. A prescription to calculate neutron skin thickness and the slope of symmetry energy parameter L from the parity violating asymmetry measured in the PREX experiment is proposed.
Nuclear symmetry energy and neutron skin thickness / M. Warda, M. Centelles, X. Viñas, X. Roca-Maza. - In: ACTA PHYSICA POLONICA B. - ISSN 0587-4254. - 43:2(2012), pp. 209-220. ((Intervento presentato al 32. convegno Mazurian lakes conference on physics frontiers in nuclear physics tenutosi a Piaski, Poland nel 2012 [10.5506/APhysPolB.43.209].
Nuclear symmetry energy and neutron skin thickness
X. Roca-Maza
2012
Abstract
The relation between the slope of the nuclear symmetry energy at saturation density and the neutron skin thickness is investigated. Constraints on the slope of the symmetry energy are deduced from the neutron skin data obtained in experiments with antiprotonic atoms. Two types of neutron skin are distinguished: the “surface” and the “bulk”. A combination of both types forms neutron skin in most of nuclei. A prescription to calculate neutron skin thickness and the slope of symmetry energy parameter L from the parity violating asymmetry measured in the PREX experiment is proposed.
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