β- decay of 65Mn to 65Fe

 

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Détails bibliographiques
Auteurs: Olaizola, Bruno, Fraille, L.M., Mach, Henryk, Aprahamian, Ani, Briz, Jose Antonio, Cal-González, J., Ghita, Dan Gabriel, Köester, U., Kurcewicz, Wiktor, Lesher, S.R., Pauwels, Dieter, Picado, Esteban, Poves, Alfredo, Radulov, D., Simpson, G.S., Udías, J.M.
Format: artículo
Date de publication:2013
Description:The low-energy structure of 65Fe has been studied by means of γ and fast-timing spectroscopy at the ISOLDE facility, CERN. A level scheme of 65Fe populated following the β-decay of 65Mn was established for the first time. It includes 41 levels and 85 transitions. The excitation energy of the β-decaying isomer in 65Fe has been precisely determined at 393.7(2) keV. The β-delayed neutron emission branch was measured as Pn = 7.9(12)%, which cannot be reconciled with the previously reported value of 21.0(5)%. Four γ rays and four excited states in 64Fe were identified as being populated following the β-n decay. Four lifetimes and five lifetime limits in the subnanosecond range have been measured using the advanced time-delayed βγγ(t) method. The level scheme is compared with shell-model calculations. Tentative spin and parity assignments are proposed based on the observed transition rates, the calculations, and the systematics of the region.
Pays:Repositorio UNA
Institution:Universidad Nacional de Costa Rica
Repositorio:Repositorio UNA
Langue:Inglés
OAI Identifier:oai:null:11056/18461
Accès en ligne:http://hdl.handle.net/11056/18461
Mots-clés:ESPECTROSCOPÍA
NEUTRON EMISSION
ISOMER
SPECTROSCOPIC
RADIACTIVIDAD
NEUTRONES
RADACTIVE DECAY

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