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Contribution of chiral three-body forces to the monopole component of the effective shell-model Hamiltonian

Journal Article · · Physical Review. C
 [1];  [2];  [2];  [2];  [2];  [3];  [4]
  1. Peking Univ., Beijing (China); DOE/OSTI
  2. Complesso Univ. di Monte S. Angelo, Via Cintia, Napoli (Italy)
  3. Complesso Univ. di Monte S. Angelo, Via Cintia, Napoli (Italy); Univ. degli Studi della Campania “Luigi Vanvitelli”, Caserta (Italy)
  4. 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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Cited By (3)

Description of even-even Ti isotopes within IBM-1 model journal March 2021
Perturbative Approach to Effective Shell-Model Hamiltonians and Operators journal October 2020
Present Status of Nuclear Shell-Model Calculations of 0νββ Decay Matrix Elements journal December 2020

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