期刊
PHYSICAL REVIEW C
卷 87, 期 6, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.87.061001
关键词
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资金
- National Science Foundation [PHY-0758125, PHY-1002478]
- UNEDF SciDAC Collaboration under DOE Grant [DE-FC02-07ER41457]
- DOE Office of Science Graduate Fellowship (SCGF) program under DOE Contract [DE-AC05-06OR23100]
- Direct For Mathematical & Physical Scien
- Division Of Physics [1002478] Funding Source: National Science Foundation
A new framework for computing the similarity renormalization group (SRG) evolution of three-nucleon forces (3NF) in momentum representation is presented. The use of antisymmetric three-particle hyperspherical momentum states ensures unitary evolutions within certain basis truncations, much like antisymmetric harmonic oscillator SRG evolutions. Additionally, in each partial wave the T-rel-SRG regulator is exactly represented, similar to recent 3NF momentum representation evolutions. Unitary equivalence is demonstrated for the triton using several chiral two- plus three-nucleon interactions. This method allows for a clean visualization of the evolution of the three-nucleon forces, which manifests the SRG decoupling pattern and low-momentum universality.
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