Contribution of chiral three-body forces to the monopole component of the effective shell-model Hamiltonian
Journal Article
·
· Physical Review. C
- Peking Univ., Beijing (China); DOE/OSTI
- Complesso Univ. di Monte S. Angelo, Via Cintia, Napoli (Italy)
- Complesso Univ. di Monte S. Angelo, Via Cintia, Napoli (Italy); Univ. degli Studi della Campania “Luigi Vanvitelli”, Caserta (Italy)
- Peking Univ., Beijing (China)
We present a study of the role played by realistic three-body forces in providing a reliable monopole component of the effective shell-model Hamiltonian. To this end, starting from a nuclear potential built up within the chiral perturbation theory, we derive effective shell-model Hamiltonians with and without the contribution of the three-body potential and compare the results of shell-model calculations with a set of observables that evidence shell-evolution properties. The testing ground of our investigation is nuclei belonging to the fp shell, since the shell-evolution towards shell closures in 48Ca and 56Ni provides a paradigm for shell-model Hamiltonians. Furthermore, our analysis shows that only by including contributions of the three-body force is the monopole component of the effective shell-model Hamiltonian then able to reproduce the experimental shell evolution towards and beyond the closure at N = 28.
- Research Organization:
- Texas A & M Univ., Commerce, TX (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Grant/Contract Number:
- SC0009971
- OSTI ID:
- 1611276
- Journal Information:
- Physical Review. C, Journal Name: Physical Review. C Journal Issue: 3 Vol. 100; ISSN 2469-9985
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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