α decay halflives of new superheavy elements
Abstract
The lifetimes of α decays of the recently produced isotopes of elements 112, 114, 116, and ^{294}118 and of some decay products are calculated theoretically within the WKB approximation by use of microscopic αnucleus 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 zerorange 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:nuclth/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
 EPrint:
 7 pages