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Skyrme interaction and nuclear matter constraints

Dutra, M, Lourenco, O, Sa Martins, JS, Delfino, A, Stone, JR and Stevenson, PD (2012) Skyrme interaction and nuclear matter constraints PHYSICAL REVIEW C, 85 (3). ISSN 0556-2813

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Abstract

This paper presents a detailed assessment of the ability of the 240 Skyrme interaction parameter sets in the literature to satisfy a series of criteria derived from macroscopic properties of nuclear matter in the vicinity of nuclear saturation density at zero temperature and their density dependence, derived by the liquid-drop model, in experiments with giant resonances and heavy-ion collisions. The objective is to identify those parametrizations which best satisfy the current understanding of the physics of nuclear matter over a wide range of applications. Out of the 240 models, only 16 are shown to satisfy all these constraints. Additional, more microscopic, constraints on the density dependence of the neutron and proton effective mass β-equilibrium matter, Landau parameters of symmetric and pure neutron nuclear matter, and observational data on high- and low-mass cold neutron stars further reduce this number to 5, a very small group of recommended Skyrme parametrizations to be used in future applications of the Skyrme interaction of nuclear-matter-related observables. Full information on partial fulfillment of individual constraints by all Skyrme models considered is given. The results are discussed in terms of the physical interpretation of the Skyrme interaction and the validity of its use in mean-field models. Future work on application of the Skyrme forces, selected on the basis of variables of nuclear matter, in the Hartree-Fock calculation of properties of finite nuclei, is outlined.

Item Type: Article
Additional Information: Copyright 2012 The American Physical Society.
Related URLs:
Divisions: Faculty of Engineering and Physical Sciences > Electronic Engineering > Advanced Technology Institute > Ion Beam Centre
Depositing User: Symplectic Elements
Date Deposited: 28 Jun 2012 09:53
Last Modified: 23 Sep 2013 19:32
URI: http://epubs.surrey.ac.uk/id/eprint/711377

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