| Issue |
EPJ Web Conf.
Volume 304, 2024
HINPw7 – 7th International Workshop of the Hellenic Institute of Nuclear Physics on Nuclear Structure, Astrophysics and Reaction Dynamics
|
|
|---|---|---|
| Article Number | 04002 | |
| Number of page(s) | 6 | |
| Section | Nuclear Structure | |
| DOI | https://doi.org/10.1051/epjconf/202430404002 | |
| Published online | 08 October 2024 | |
https://doi.org/10.1051/epjconf/202430404002
Nuclear structure studies within the realistic shell model
1 Istituto Nazionale di Fisica Nucleare, Complesso Universitario di Monte S. Angelo, Via Cintia, Napoli, I-80126, Italy
2 Dipartimento di Matematica e Fisica, Università degli Studi della Campania “Luigi Vanvitelli”, viale Abramo Lincoln, Caserta, 5-I81100, Italy
3 Faculty of Arts and Science, Kyushu University, Fukuoka, 819-0395, Japan
4 RIKEN Nishina Center, Wako, 351-0198, Japan
* e-mail: agargano@na.infn.it
** e-mail: degregorio@na.infn.it
*** e-mail: tokuro.fukui@artsci.kyushu-u.ac.jp
Published online: 8 October 2024
The role of three-nucleon forces on structure properties of nuclei is discussed within the realistic shell model. Calculations are performed by employing effective shell-model Hamiltonians derived by way of many-perturbation theory from chiral potentials including the nucleon-nucleon and three-nucleon components. A sketch of the formalism in treating the three-nucleon force is given and some selected results for f p- and p-shell nuclei are shown. Particular attention is devoted to the effects of the three-nucleon force on the monopole component of the effective shell-model interaction by showing how relevant they are in correcting the monopole interaction derived from the nucleon-nucleon force only and correctly describing the formation of shell structure as well as the enhancement in the spin-orbit splitting. A decomposition scheme based on the rank of irreducible tensors forming the three-nucleon force at the next-to-next-to-leading order is also presented to recognize their impact on the spin-orbit enhancement.
© The Authors, published by EDP Sciences, 2024
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