Occupation numbers of spherical orbits in self-consistent beyond-mean-field methods

被引：19

作者：

Rodriguez, Tomas R. ^{[1
]}

Poves, Alfredo ^{[1
,2
,3
]}

Nowacki, Frederic ^{[4
]}

机构：

[1] Univ Autonoma Madrid, Dept Fis Teor, E-28049 Madrid, Spain

[2] UAM CSIC, Inst Fis Teor, E-28049 Madrid, Spain

[3] Univ Strasbourg, Inst Adv Study, Strasbourg, France

[4] Inst Pluridisciplinaire Hubert Curien, 23 Rue Loess, F-67037 Strasbourg 2, France

来源：

PHYSICAL REVIEW C | 2016年 / 93卷 / 05期

关键词：

SHELL-MODEL; NUCLEAR-STRUCTURE; ANGULAR-MOMENTUM; ATOMIC-NUCLEI; PROJECTION;

D O I：

10.1103/PhysRevC.93.054316

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 present a method to compute the number of particles occupying spherical single-particle (SSP) levels within the energy density functional (EDF) framework. These SSP levels are defined for each nucleus by performing self-consistent mean-field calculations. The nuclear many-body states, in which the occupation numbers are evaluated, are obtained with a symmetry conserving configuration mixing (SCCM) method based on the Gogny EDF. The method allows a closer comparison between EDF and shell model with configuration mixing in large valence spaces (SM-CI) results, and can serve as a guidance to define physically sound valence spaces for SM-CI calculations. As a first application of the method, we analyze the onset of deformation in neutron-rich N = 40 isotones and the role of the SSP levels around this harmonic oscillator magic number, with particular emphasis in the structure of Cr-64.

引用

页数：10

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