Finite-range simple effective interaction including tensor terms
An existing parametrization of the simple effective interaction (SEI) that is able to reproduce the experimentally known crossing between the 23/2 and 15/2 single-particle (s.p.) proton levels in neutron-rich Ni isotopes has been generalized. We have added a short-range tensor force in order to de...
| Authors: | , , , , , |
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| Format: | article |
| Status: | Published version |
| Publication Date: | 2022 |
| Country: | España |
| Institution: | Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| Repository: | Recercat. Dipósit de la Recerca de Catalunya |
| OAI Identifier: | oai:recercat.cat:2445/215268 |
| Online Access: | http://hdl.handle.net/2445/215268 |
| Access Level: | Open access |
| Keyword: | Forces nuclears (Física) Estructura nuclear Propietats de la matèria Nuclear forces (Physics) Nuclear structure Properties of matter |
| Summary: | An existing parametrization of the simple effective interaction (SEI) that is able to reproduce the experimentally known crossing between the 23/2 and 15/2 single-particle (s.p.) proton levels in neutron-rich Ni isotopes has been generalized. We have added a short-range tensor force in order to describe the observed gaps between the 1ℎ11/2 and 17/2s.p. proton levels in the Sn isotopic chain and between the 113/2 and 1ℎ9/2s.p. neutron levels in =82 isotones without compromising the good agreement with the splittings in the Ni isotopes. Different scenarios where tensor effects are relevant are considered with the new interaction and its predictions are compared with results from other mean-field models and experimental data where available. |
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