α decay half-lives of new superheavy elements
Abstract
The lifetimes of α decays of the recently produced isotopes of elements 112, 114, 116, and 294118 and of some decay products are calculated theoretically within the WKB approximation by use of microscopic α-nucleus interaction potentials. We obtain these nuclear potentials by folding the densities of the α and the daughter nuclei with the M3Y effective interaction, supplemented by a zero-range pseudopotential for exchange along with the density dependence. Spherical charge distributions are used for calculating the Coulomb interaction potentials. These calculations provide reasonable estimates for the observed α decay lifetimes and thus provide reliable predictions for other superheavies.
- Publication:
-
Physical Review C
- Pub Date:
- January 2006
- DOI:
- 10.1103/PhysRevC.73.014612
- arXiv:
- arXiv:nucl-th/0507054
- Bibcode:
- 2006PhRvC..73a4612C
- Keywords:
-
- 27.90.+b;
- 23.60.+e;
- 21.30.Fe;
- 25.55.Ci;
- 220<
- =A;
- Alpha decay;
- Forces in hadronic systems and effective interactions;
- Elastic and inelastic scattering;
- Nuclear Theory
- E-Print:
- 7 pages