Ground-state energy of {sup 40}Ca with the CD-Bonn nucleon-nucleon potential

Journal Article · Tue May 15 04:00:00 EDT 2007 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.75.057303· OSTI ID:20995342

Coraggio, L; Covello, A; Gargano, A; Itaco, N ^[1]; Kuo, T T. S. ^[2]

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1. Dipartimento di Scienze Fisiche, Universita di Napoli Federico II, and Istituto Nazionale di Fisica Nucleare, Complesso Universitario di Monte S. Angelo, Via Cintia, I-80126 Naples (Italy)
2. Department of Physics, SUNY, Stony Brook, New York 11794 (United States)

We have calculated the ground-state energy of the doubly-magic nucleus {sup 40}Ca within the framework of the Goldstone expansion using the CD-Bonn nucleon-nucleon potential. The short-range repulsion of this potential has been renormalized by integrating out its high-momentum components so as to derive a low-momentum potential V{sub low-k} defined up to a cutoff momentum {lambda}. A simple criterion has been employed to establish a connection between this cutoff momentum and the size of the two-nucleon model space in the harmonic oscillator basis. This model-space truncation approach provides a reliable way to renormalize the free nucleon-nucleon potential preserving its many-body physics. The role of the 3p-3h and 4p-4h excitations in the description of the ground state of {sup 40}Ca is discussed.

• OSTI ID: 20995342
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 5 Vol. 75; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CALCIUM 40
EXCITATION
GROUND STATES
HARMONIC OSCILLATORS
MAGIC NUCLEI
MANY-BODY PROBLEM
NUCLEON-NUCLEON POTENTIAL
NUCLEONS
SPACE