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Title: Properties of the C-12 10 MeV state determined through β-decay
Authors: Diget, C. Aa., Barker, F. C., García Borge, María José, Cederkäll, J., Fedosseev, V. N., Fraile, Luis M., Fulton, B. R., Fynbo, H. O. U., Jeppesen, Henrik B., Jonson, B., Köster, U., Meister, M., Nilsson, T., Nyman, G., Prezado, Yolanda, Riisager, K., Rinta-Antila, S., Tengblad, Olof, Turrión, Manuela, Wilhelmsen, K., Äystö, J.
Keywords: Radioactivity Be-12(β-) B-12(β(-)3α) [produced in Ta(p, X)]
Measured α-particle coincidences
R-matrix analysis
Deduced spin and parity of levels in C-12
Double-sided Si strip detector
[PACS] β decay; double β decay; electron and muon capture
[PACS] Hydrostatic stellar nucleosynthesis
[PACS] Properties of specific nuclei listed by mass ranges: 6 ≤ A ≤ 19
Issue Date: 4-Jun-2005
Publisher: Elsevier
Abstract: The β-delayed triple-α particle decay of B-12 has been measured with a setup that favours coincidence detection. A broad state in C-12, 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.
Description: 16 pages, 1 table, 10 figures.-- PACS nrs.: 23.40.-s; 26.20.+f; 27.20.+n.-- Printed version published Oct 3, 2005.
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ISSN: 0375-9474
???metadata.dc.identifier.doi???: 10.1016/j.nuclphysa.2005.05.159
Citation: Nuclear Physics A 760(1-2): 3–18 (2005)
Appears in Collections:(CFMAC-IEM) Artículos

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