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Open Access item Study of β-delayed 3-body and 5-body breakup channels observed in the decay of Li-11

Authors:Madurga, Miguel
García Borge, María José
Angelique, J. C.
Bao, L.
Bergmann, U.
Buta, A.
Cederkäll, J.
Diget, C. Aa.
Fraile, Luis M.
Fynbo, H. O. U.
Jeppesen, Henrik B.
Jonson, B.
Maréchal, F.
Marqués, F. M.
Nilsson, T.
Nyman, G.
Perrot, F.
Riisager, K.
Tengblad, Olof
Tengborn, E.
Turrión, M.
Wilhelmsen, K.
Keywords:[PACS] Relation with nuclear matrix elements and nuclear structure, [PACS] Properties of specific nuclei listed by mass ranges: 6 ≤ A ≤ 19, Radioactivity: Li-11(β−), Measured: β-delayed charged-particle spectra, Be-11 deduced, subsequent break-up decay channels
Issue Date:22-Jul-2008
Citation:Nuclear Physics A 810 (1-4): 1-12 (2008)
Abstract:The β-delayed charged particle emission from Li-11 has been studied with emphasis on the three-body nαHe-6 and five-body 2α3n channels from the 10.59 and 18.15 MeV states in Be-11. Monte Carlo simulations using an R-matrix formalism lead to the conclusion that the He-A resonance states play a significant role in the break-up of these states. The results exclude an earlier assumption of a phase-space description of the break-up process of the 18.15 MeV state. Evidence for extra sequential decay paths is found for both states.
Description:12 pages, 5 figures, 3 tables.-- PACS nrs.: 23.40.Hc; 27.20.+n.-- Printed version published Sep 15, 2008.-- ArXiv pre-print available at: http://arxiv.org/abs/0806.3025
Publisher version (URL):http://dx.doi.org/10.1016/j.nuclphysa.2008.07.008
Appears in Collections:(CFMAC-IEM) Artículos

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