Exotic {alpha} decays around the N=126 magic shell
- Department of Physics, Nanjing University, Nanjing 210093 (China)
We investigate the {alpha}-decay half-lives of the exotic N=125,126,127 isotones by the generalized density-dependent cluster model (GDDCM) in combination with the microscopic two-level model. The decay widths are calculated using the overlap integral of the quasibound state wave function, the scattering state wave function, and the difference of potentials, instead of using the simple semiclassical WKB method along with the Bohr-Sommerfeld quantization condition. The {alpha}-preformation factors are evaluated by the Z-dependent formula based on the two-level model, where the closed-shell effect is included. The calculated half-lives of {alpha} transitions to both ground states and excited states are found to be in good agreement with the experimental data.
- OSTI ID:
- 21289983
- Journal Information:
- Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 1 Vol. 80; ISSN 0556-2813; ISSN PRVCAN
- Country of Publication:
- United States
- Language:
- English
Similar Records
Critical view of WKB decay widths
{alpha}-decay studies of the exotic N=125, 126, and 127 isotones