Constraints on Skyrme equations of state from properties of doubly magic nuclei and ab initio calculations of low-density neutron matter

被引：62

作者：

Brown, B. Alex ^{[1
,2
]}

Schwenk, A. ^{[3
,4
]}

机构：

[1] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA

[2] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA

[3] GSI Helmholtzzentrum Schwerionenforsch GmbH, ExtreMe Matter Inst EMMI, D-64291 Darmstadt, Germany

[4] Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany

来源：

PHYSICAL REVIEW C | 2014年 / 89卷 / 01期

基金：

美国国家科学基金会; 欧洲研究理事会;

关键词：

OF-STATE; PARAMETRIZATION; SUBNUCLEAR;

D O I：

10.1103/PhysRevC.89.011307

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We use properties of doubly magic nuclei and ab initio calculations of low-density neutron matter to constrain Skyrme equations of state for neutron-rich conditions. All of these properties are consistent with a Skyrme functional form and a neutron-matter equation of state that depends on three parameters. With a reasonable range for the neutron-matter effective mass, the values of the two other Skyrme parameters are well constrained. This leads to predictions for other quantities. The neutron skins for Pb-208 and Ca-48 are predicted to be 0.182(12) and 0.173(5) fm, respectively. Other results including the dipole polarizability are discussed.

引用

页数：5

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