Ab initio no-core Gamow shell model calculations with realistic interactions

被引：87

作者：

Papadimitriou, G. ^{[1
]}

Rotureau, J. ^{[2
]}

Michel, N. ^{[3
,4
,5
]}

Ploszajczak, M. ^{[6
]}

Barrett, B. R. ^{[1
]}

机构：

[1] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA

[2] Chalmers Univ Technol, S-41296 Gothenburg, Sweden

[3] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA

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

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

[6] CEA DSM CNRS IN2P3, GANIL, F-14076 Caen 5, France

来源：

PHYSICAL REVIEW C | 2013年 / 88卷 / 04期

基金：

欧洲研究理事会; 美国国家科学基金会;

关键词：

MATRIX RENORMALIZATION-GROUP; UNIFIED THEORY; NUCLEAR; SCATTERING; EQUATIONS; RESONANCE; BRACKETS; STATES;

D O I：

10.1103/PhysRevC.88.044318

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：

No-core Gamow shell model (NCGSM) is applied to study selected well-bound and unbound states of helium isotopes. This model is formulated on the complex energy plane and, by using a complete Berggren ensemble, treats bound, resonant, and scattering states on equal footing. We use the density matrix renormalization group method to solve the many-body Schrodinger equation. To test the validity of our approach, we benchmarked the NCGSM results against Faddeev and Faddeev-Yakubovsky exact calculations for H-3 and He-4 nuclei. We also performed ab initio NCGSM calculations for the unstable nucleus He-5 and determined the ground-state energy and decay width, starting from a realistic (NLO)-L-3 chiral interaction.

引用

页数：15

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