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Anatomy of three-body decay I: schematic models

AuthorsGarrido, Eduardo ; Fedorov, D.V.; Jensen, A.S.; Fynbo, H.O.U.
Keywords[PACS] Few-body systems
[PACS] Hyperspherical methods
[PACS] Resonances
Issue Date7-Feb-2005
CitationNuclear Physics A 748 (1-2): (2005) 27–38
AbstractSequential three-body decay proceeds via spatially confined quasi-stationary two-body configurations. Direct three-body decay populates the three-body continuum without intermediate steps. The relative importance of these decay modes is discussed in a schematic model employing only Coulomb or centrifugal barrier potentials. Decisive dimensionless charge, mass and energy ratios are derived. Sequential decay is usually favored for charged particles. Small charge and small mass of high energy is preferably emitted first. Without Coulomb potential the sequential decay is favored except when both resonance energy and intermediate two-body energy are large.
Description12 pages, 1 figure.--PACS nrs.: 21.45.+v; 31.15.Ja; 25.70.Ef.--Available online on Nov 10, 2004.--ArXiv pre-print available at: http://arxiv.org/abs/nucl-th/0411078v1
Publisher version (URL)http://dx.doi.org/10.1016/j.nuclphysa.2004.10.014
Appears in Collections:(CFMAC-IEM) Artículos
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