par Adachour, A.;Descouvemont, Pierre 
Référence Nuclear Physics A, 813, 3-4, page (252-261)
Publication Publié, 2008
Référence Nuclear Physics A, 813, 3-4, page (252-261)
Publication Publié, 2008
Article révisé par les pairs
| Résumé : | We use the Generator Coordinate Method to investigate the 5H and 5He systems in the hyperspherical formalism. The microscopic wave functions are described by a 3H + n + n cluster structure for 5H, and by a mixing of 3H + p + n and 3H + n + n configurations for 5He. The resonance properties are analyzed with the Analytic Coupling in the Continuum Constant (ACCC) method. For 5H, we find results consistent with the literature, but the ground-state width is lower than in previous works. The calculation suggests J = 1 / 2+ and J = 3 / 2+ states in 5He which correspond to the isobaric analog states of low-lying levels in 5H. A J = 1 / 2+ ; T = 3 / 2 state is found near Ex = 21.3 MeV in 5He, with a width of Γ ≈ 1 MeV. © 2008 Elsevier B.V. All rights reserved. |
