Deformation of Sr and Rb isotopes close to the N=Z line via β-decay studies using the total absorption technique

A study of the Gamow-Teller strength distributions B(GT) in the beta decay of 78Sr and 76,78Rb has been made using a total absorption spectrometer (TAS). Following the success in deducing the sign of the deformation for 76Sr, a similar approach is adopted for 78Sr based on a comparison of the measur...

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Detalhes bibliográficos
Autores: Pérez-Cerdán, Ana Belén, Rubio, Berta, Gelletly, W., Algora, Alejandro, Agramunt, Jorge, Nácher, Enrique, Taín, José Luis, Sarriguren, Pedro, Fraile, Luis M., García Borge, María José, Caballero Ontanaya, Luis, Dessagne, Ph., Jungclaus, Andrea, Heitz, G., Maréchal, F., Poirier, E., Salsac, M. D., Tengblad, Olof
Formato: artículo
Fecha de publicación:2013
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/103671
Acesso em linha:http://hdl.handle.net/10261/103671
Access Level:acceso abierto
Palavra-chave:[PACS] Nuclear structure models and methods
[PACS] Relation with nuclear matrix elements and nuclear structure
[PACS] γ transitions and level energies
Descrição
Resumo:A study of the Gamow-Teller strength distributions B(GT) in the beta decay of 78Sr and 76,78Rb has been made using a total absorption spectrometer (TAS). Following the success in deducing the sign of the deformation for 76Sr, a similar approach is adopted for 78Sr based on a comparison of the measured B(GT) with quasiparticle random-phase approximation calculations. This work confirms its previously expected prolate deformation in the ground state. Conclusions about the structure of the odd-odd 76,78Rb isotopes have been drawn based on their measured B(GT) distributions. © 2013 American Physical Society.

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