Nota de FísicaPublicado
Alpha Decay and Nuclear Deformation: the Case for Favoured Alpha Transitions of Even-even Emitters
F. Garcia; O. Rodriguez; M. Gonçalves; S. B. Duarte; O. A. P. Tavares; F. Guzman
2000
Dados da publicação
- Autores
- F. Garcia; O. Rodriguez; M. Gonçalves; S. B. Duarte; O. A. P. Tavares; F. Guzman
- Tipo
- Nota de Física
- Status
- Publicado
- Data de publicação
- 2000
- Descrição
- Alpha-decay half-life for ground-state to ground-state transitions of 174 even-even alpha emitters has been calculated from a simple, Gamow-like model in which the quadrupole deformation of the product nucleus (assumed to have an ellipsoidal shape) is taken into account. The assumption made is that before tunnelling through a purely Coulomb potential barrier the two-body system oscillates isotropically, thus giving rise to an equivalent, average polar direction θ0 (referred to the symmetry axis of the ellipsoid) for alpha emission. It is shown that the experimental half-life data are much better reproduced by the present description than in the spherical-shaped approximation for the daughter nucleus.
- Ano
- 2000
- Número
- CBPF-NF-011/00
- Vínculo com tese
- Não
- Vínculo com bolsa
- Não