Are the nuclei beyond (132)Sn very exotic? - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2016

Are the nuclei beyond (132)Sn very exotic?

Résumé

The term exotic nucleus is used for nuclei that have different from normal behavior. However, it turns out that the term normal is valid only for nuclei close to stability and more particularly for regions close to double-shell closures. As long as one drives away in the neutron-rich nuclei, especially at intermediate mass number, interplay between normal single-particle and many collective particle-hole excitations compete. In some cases with the addition of neutrons, these may turn to evolve as a skin, acting against the core nucleus that may also influence its shell evolution. Knowledge of these nuclear ingredients is especially interesting beyond the doubly-magic (132)Sn, however a little is known on how the excitations modes develop with the addition of both protons and neutrons. Especially for the Sb nuclei, where one gradually increases these valence particles, the orbital evolution and its impact on exoticness is very intriguing. Experimental studies were conducted on several such isotopes using isomer and, β-decay spectroscopy at RIBF within EURICA. In particular, new data on (140)Sb and (136)Sb are examined and investigated in the framework of shell model calculations.

Dates et versions

hal-01584659 , version 1 (09-09-2017)

Identifiants

Citer

R. Lozeva, H. Naïdja, F. Nowacki, A. Odahara, C.B. Moon. Are the nuclei beyond (132)Sn very exotic?. 21st International School on Nuclear Physics and Applications & the International Symposium on Exotic Nuclei, Sep 2015, Varna, Bulgaria. pp.012030, ⟨10.1088/1742-6596/724/1/012030⟩. ⟨hal-01584659⟩
48 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More