Multiparticle emission in the decay of Ar 31

 

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Detalles Bibliográficos
Autores: Koldste, G.T., Blank, B., Borge, M.J.G., Briz, J.A., Carmona-Gallardo, M., Fraile, L.M., Fynbo, H.O.U., Giovinazzo, J., Grann, B.D., Johansen, J.G., Jokinen, A., Jonson, B., Kurturkian-Nieto, T., Kusk, J.H., Nilsson, T., Perea, A., Pesudo, V., Picado, Esteban, Riisager, K., Saastamoinen, A., Tengblad, O., Thomas, J.C., Van del Walle, J.
Formato: artículo
Fecha de Publicación:2014
Descripción:A multihit capacity setup was used to study the decay of the dripline nucleus 31Ar, produced at the ISOLDE facility at CERN. A spectroscopic analysis of the β-delayed three-proton decay of 31Ar is presented for the first time together with a quantitative analysis of the β-delayed 2pγ decay. A new method for determination of the spin of low-lying levels in the βp daughter 30S using proton-proton angular correlations is presented and used to determine that the spin of the 5.2-MeV level is most likely 3+ with 4+ also possible. The half-life of 31Ar is found to be 15.1(3) ms. An improved analysis of the Fermi β strength including the β3p-decay mode gives a total measured branching ratio of 3.60(44)%, which is lower than the theoretical value found to be 4.24(43)%. Finally, a previously unidentified γ transition from the isobaric analog state in the decay of 33Ar has been found. © 2014 American Physical Society.
País:Repositorio UNA
Institución:Universidad Nacional de Costa Rica
Repositorio:Repositorio UNA
Lenguaje:Inglés
OAI Identifier:oai:null:11056/18059
Acceso en línea:http://hdl.handle.net/11056/18059
Palabra clave:FÍSICA
FÍSICA NUCLEAR
CIENCIA
ANÁLISIS ESPECTROSCÓPICO
NUCLEAR EXPERIMENT
BETA DESINTEGRATION
PROTON

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