Lifetime measurements to investigate γ softness and shape coexistence in Mo102
Lifetimes of low-spin excited states in Mo102 populated in a Mo100(O18,O16)Mo102 two-neutron transfer reaction were measured using the recoil-distance Doppler-shift technique at the Cologne FN Tandem accelerator. Lifetimes of the 21+, 41+, 61+, 02+, 2γ+, 3γ+ states and one upper limit for the lifeti...
| Autores: | , , , , , , , , , , , , , , , |
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| Formato: | artículo |
| Fecha de publicación: | 2021 |
| País: | España |
| Recursos: | Universidad Autónoma de Madrid |
| Repositorio: | Biblos-e Archivo. Repositorio Institucional de la UAM |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.uam.es:10486/705447 |
| Acesso em linha: | http://hdl.handle.net/10486/705447 https://dx.doi.org/10.1103/PhysRevC.104.064314 |
| Access Level: | acceso abierto |
| Palavra-chave: | Yrast State Even-even Nuclei Coexistence Física |
| Resumo: | Lifetimes of low-spin excited states in Mo102 populated in a Mo100(O18,O16)Mo102 two-neutron transfer reaction were measured using the recoil-distance Doppler-shift technique at the Cologne FN Tandem accelerator. Lifetimes of the 21+, 41+, 61+, 02+, 2γ+, 3γ+ states and one upper limit for the lifetime of the 4γ+ state were obtained. The energy levels and deduced electromagnetic transition probabilities are compared with those obtained within the mapped interacting boson model framework with microscopic input from Gogny mean-field calculations. With the newly obtained signatures a more detailed insight in the γ softness and shape coexistence in Mo102 is possible and discussed in the context of the Z≈40 and N≈60 region. The nucleus of Mo102 follows the γ soft trend of the Mo isotopes. The properties of the 02+ state indicate, in contrast with the microscopic predictions, shape coexistence which also occurs in other N=60 isotones |
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