Properties of the 12 C 10 MeV state determined through β -decay

The β -delayed triple- α particle decay of 12 B has been measured with a setup that favours coincidence detection. A broad state in 12 C, previously reported around 10 MeV, has been seen and its properties determined through R-matrix analysis of the excitation spectrum. The spin and parity are 0 + ....

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Detalles Bibliográficos
Autores principales: Diget, C Aa, Barker, F C, Borge, M J G, Cederkäll, J, Fedosseev, V N, Fraile, L M, Fulton, B R, Fynbo, H O U, Jeppesen, H B, Jonson, B, Köster, U, Meister, M, Nilsson, T, Nyman, G, Prezado, Y, Riisager, K, Rinta-Antila, S, Tengblad, O, Turrion, M, Wilhelmsen, K, Äystö, J
Lenguaje:eng
Publicado: 2005
Materias:
Nuclear Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1016/j.nuclphysa.2005.05.159
http://cds.cern.ch/record/2243944
Descripción
Sumario:The β -delayed triple- α particle decay of 12 B has been measured with a setup that favours coincidence detection. A broad state in 12 C, previously reported around 10 MeV, has been seen and its properties determined through R-matrix analysis of the excitation spectrum. The spin and parity are 0 + . Interference between this state and the Hoyle state at 7.654 MeV has a marked influence on the spectrum. The coupling between the two states makes it difficult to determine the resonance energy.

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