Three-nucleon forces and spectroscopy of neutron-rich calcium isotopes

被引：82

作者：

Holt, J.D ^{[1
,2
,3
,4
]}

Menendez, J ^{[1
,2
]}

Simonis, J ^{[1
,2
]}

Schwenk, A ^{[1
,2
]}

机构：

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

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

[3] Michigan State Univ, Natl Supercond Cyclotron Lab, E Lansing, MI 48844 USA

[4] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48844 USA

来源：

PHYSICAL REVIEW C | 2014年 / 90卷 / 02期

关键词：

SHELL-MODEL; NUCLEI;

D O I：

10.1103/PhysRevC.90.024312

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 study excited-state properties of neutron-rich calcium isotopes based on chiral two- and three-nucleon interactions. We first discuss the details of our many-body framework, investigate convergence properties, and for two-nucleon interactions benchmark against coupled-cluster calculations.We then focus on the spectroscopy of Ca47-56, finding that with both 3N forces and an extended pfg(9/2) valence space, we obtain a good level of agreement with experiment. We also study electromagnetic transitions and find that experimental data are well described by our calculations. In addition, we provide predictions for unexplored properties of neutron-rich calcium isotopes.

引用

页数：14