Gambacurta, D. (2024) Recent studies within the Subtracted Second RPA. Il nuovo cimento C, 47 (2). pp. 1-9. ISSN 1826-9885
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Abstract
The Second Random Phase Approximation (SRPA) is an extension of the Random Phase Approximation (RPA) where more general excitation opera- tors are introduced, including also two particle-two hole configurations, in addition to the one particle-one hole ones, already considered in the RPA. In the last years, systematic and large-scale SRPA calculations, without usually employed approxima- tions have been performed. These calculations have shown severe limitation of the SRPA when effective interactions are employed, introducing double counting issues and instabilities. The SRPA model, upgraded by the subtraction method, designed to cure these difficulties, has been recently implemented and applied in the study of different physical cases. In this paper, we discuss some of the most recent results obtained by using this model, in particular concerning the dipole low-lying response and Gamow-Teller excitation in closed-shell nuclei.
| Item Type: | Article |
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| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 20 May 2024 14:13 |
| Last Modified: | 20 May 2024 14:13 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/22873 |
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