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Momentum distributions of α particles from decaying low-lying C12 resonances

AuthorsÁlvarez-Rodríguez, R.; Jensen, A. S.; Garrido, Eduardo ; Fedorov, D. V.; Fynbo, H. O. U.
Issue Date4-Jun-2008
PublisherAmerican Physical Society
CitationPhysical Review C - Nuclear Physics 77: 064305 (2008)
AbstractThe complex scaled hyperspherical adiabatic expansion method is used to compute momentum and energy distributions of the three α particles emerging from the decay of low-lying C12 resonances. The large distance continuum properties of the wave functions are crucial and must be accurately calculated. We discuss separately decays of natural-parity states: two 0+, one 1-, three 2+, one 3-, two 4+, one 6+, and one of each of unnatural parity 1+,2-,3+,4-. The lowest natural-parity state of each Jπ decays predominantly sequentially via the Be8 ground state, whereas other states, including unnatural-parity states, predominantly decay directly to the continuum. We present Dalitz plots and systematic detailed momentum correlations of the emerging α particles. © 2008 The American Physical Society.
Description10 págs.; 7 figs.; 1 tab. ; PACS number(s): 21.45.−v, 21.60.Gx, 25.70.Ef, 27.20.+n
Publisher version (URL)https://doi.org/10.1103/PhysRevC.77.064305
Identifiersdoi: 10.1103/PhysRevC.77.064305
issn: 0556-2813
Appears in Collections:(CFMAC-IEM) Artículos
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