In-medium similarity renormalization group with chiral two- plus three-nucleon interactions

被引：158

作者：

Hergert, H. ^{[1
]}

Bogner, S. K. ^{[2
,3
]}

Binder, S. ^{[4
]}

Calci, A. ^{[4
]}

Langhammer, J. ^{[4
]}

Roth, R. ^{[4
]}

Schwenk, A. ^{[4
,5
]}

机构：

[1] Ohio State Univ, Columbus, OH 43210 USA

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

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

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

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

来源：

PHYSICAL REVIEW C | 2013年 / 87卷 / 03期

基金：

美国国家科学基金会;

关键词：

COUPLED-CLUSTER THEORY;

D O I：

10.1103/PhysRevC.87.034307

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 the recently proposed in-medium similarity renormalization group (IM-SRG) to carry out a systematic study of closed-shell nuclei up to Ni-56, based on chiral two-plus three-nucleon interactions. We analyze the capabilities of the IM-SRG by comparing our results for the ground-state energy to coupled cluster calculations, as well as to quasiexact results from the importance-truncated no-core shell model. Using chiral two-plus three-nucleon Hamiltonians whose resolution scales are lowered by free-space SRG evolution, we obtain good agreement with experimental binding energies in He-4 and the closed-shell oxygen isotopes, while the calcium and nickel isotopes are somewhat overbound. DOI: 10.1103/PhysRevC.87.034307

引用

页数：10

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