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.
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页数：15
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