$^{31}$Ar examined: new limit on the $\beta$-delayed three-proton branch

We have remeasured the decay of $^{31}$Ar with a setup sensitive to multiparticle decay branches and obtained a new limit of 1.1 × $10^{-3}$(99%C.L.) on the $\beta$-delayed three-proton branch between the isobaric analog state in $^{31}$Cl and the ground state of $^{28}$Si. This a factor of 17 below...

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Detalles Bibliográficos
Autores principales: Fynbo, H O U, Axelsson, L, Äystö, J, García-Borge, M J, Fraile-Prieto, L M, Honkanen, J A, Hornshøj, P, Jading, Y, Jokinen, A, Jonson, B, Martel, I, Mukha, I, Nilsson, T, Nyman, G H, Oinonen, M, Riisager, K, Siiskonen, T, Smedberg, M H, Tengblad, O, Wenander, F
Lenguaje:eng
Publicado: 1998
Materias:
Nuclear Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1103/PhysRevC.59.2275
http://cds.cern.ch/record/402439
Descripción
Sumario:We have remeasured the decay of $^{31}$Ar with a setup sensitive to multiparticle decay branches and obtained a new limit of 1.1 × $10^{-3}$(99%C.L.) on the $\beta$-delayed three-proton branch between the isobaric analog state in $^{31}$Cl and the ground state of $^{28}$Si. This a factor of 17 below the previously reported first observation of $\beta$-delayed three-proton emission in $^{31}$Ar. The limit on a possible $\beta$-3p branch to the first excited state in $^{28}$Si is 2.9 × 10$^{-4}$.

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