Momentum distributions of $α$-particles from decaying low-lying $^{12}$C-resonances

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dc.creatorAlvarez-Rodriguez, R.
dc.creatorJensen, A. S.
dc.creatorGarrido, E.
dc.creatorFedorov, D. V.
dc.creatorFynbo, H. O. U.
dc.date2008-05-09
dc.date.accessioned2026-07-07T11:33:47Z
dc.date.available2026-07-07T11:33:47Z
dc.descriptionThe 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 $^{12}$C-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 $J^π$ decays predominantly sequentially via the $^{8}$Be 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.
dc.description11 pages, 7 figures, accepted for publication in Physical Review C
dc.identifierhttps://arxiv.org/abs/0805.1332
dc.identifierhttp://arxiv.org/abs/0805.1332
dc.identifierPhys.Rev.C77:064305,2008
dc.identifierdoi:10.1103/PhysRevC.77.064305
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/198016
dc.subjectNuclear Theory
dc.titleMomentum distributions of $α$-particles from decaying low-lying $^{12}$C-resonances
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