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Título

Neutron-3H potentials and the 5H-properties

AutorDiego, Raul de ; Garrido, Eduardo ; Fedorov, D. V.; Jensen, A. S.
Palabras clave[PACS] Few-body systems
[PACS] Hyperspherical methods
[PACS] Resonances
Fecha de publicación12-feb-2007
EditorElsevier
CitaciónNuclear Physics A 786(1-4): 71–89 (2007)
ResumenThe continuum resonance spectrum of 5H (3H + n + n) is investigated by use of the complex scaled hyperspherical adiabatic expansion method. The crucial 3H-neutron potential is obtained by switching off the Coulomb part from successful fits to 3He-proton experimental data. These two-body potentials must be expressed exclusively by operators conserving the nucleon–core mean field angular momentum quantum numbers. The energies ER and widths ΓR of the 1/2+ ground-state resonance and the lowest two excited 5/2+- and 3/2+-resonances are found to be (1.6, 1.5) MeV, (2.8, 2.5) MeV and (3.2, 3.9) MeV, respectively. These results agree with most of the experimental data. The energy distributions of the fragments after decay of the resonances are predicted.
Descripción19 pages, 8 tables, 7 figures.--PACS nrs.: 21.45.+v; 31.15.Ja; 25.70.Ef.--Printed version published Apr 15, 2007.--ArXiv pre-print available at: http://arxiv.org/abs/nucl-th/0702018v1
Versión del editorhttp://dx.doi.org/10.1016/j.nuclphysa.2007.02.002
URIhttp://hdl.handle.net/10261/15915
DOI10.1016/j.nuclphysa.2007.02.002
ISSN0375-9474
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