Beta-decay strength and isospin mixing studies in the sd and fp-shells

Journal Article · Mon Dec 21 00:00:00 EST 1998 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.57369· OSTI ID:21207857

Jokinen, A; Aeystoe, J; Dendooven, P; Honkanen, A; Lipas, P; Peraejaervi, K; Siiskonen, T ^[1]

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1. Department of Physics, University of Jyvaeskylae, P.O. Box 35, FIN-40351 Jyvaeskylae (Finland)

We have studied beta decays of M{sub T}<0 nuclei in sd and fp shells. The decay of {sup 41}Ti shows a large, 10(8) %, isospin mixing of IAS and the Gamow-Teller strength is observed to be quenched by a factor of q{sup 2}=0.64. These results can be reproduced qualitatively in our shell model calculations. We have observed for the first time proton and gamma decay of the isobaric analogue state in {sup 23}Mg. Our results on the isospin mixing of the isobaric analogue state agrees well with the shell model calculations. The obtained proton branch of the IAS is used to extract the transition strength for the reaction {sup 22}Na(p,{gamma}){sup 23}Mg.

• OSTI ID: 21207857
• Journal Information: AIP Conference Proceedings, Vol. 455, Issue 1; Conference: ENAM 98: 2. international conference on exotic nuclei and atomic masses, Bellaire, MI (United States), 23-27 Jun 1998; Other Information: DOI: 10.1063/1.57369; (c) 1998 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BETA DECAY
GAMMA DECAY
GAMOW-TELLER RULES
ISOBARIC ANALOGS
ISOSPIN
MAGNESIUM 23
PROBABILITY
PROTON REACTIONS
PROTONS
SHELL MODELS
SODIUM 22 TARGET
STRENGTH FUNCTIONS
TITANIUM 41