6533b855fe1ef96bd12b116b

RESEARCH PRODUCT

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

Teemu SiiskonenP.o. LipasAri JokinenA. HonkanenMarkku OinonenJuha ÄYstöPeter DendoovenKari Peräjärvi

subject

Nuclear reactionNuclear physicsPhysicsProtonDouble beta decayIsospinNuclear TheoryHadronAtomic physicsNuclear ExperimentNucleonBeta decayRadioactive decay

description

We have studied beta decays of MT<0 nuclei in sd and fp shells. The decay of 41Ti shows a large, 10(8) %, isospin mixing of IAS and the Gamow-Teller strength is observed to be quenched by a factor of q2=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 23Mg. 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 22Na(p,γ)23Mg.

yearjournalcountryeditionlanguage
1998-01-01Exotic nuclei and atomic masses (ENAM 98)
https://doi.org/10.1063/1.57369