Finite size αparticle calculations of absolute αdecay for spherical nuclei
Abstract
Recently some important results have been obtained in calculating absolute αdecay widths, the calculations having been performed in the zero range αparticle approximation. In this paper the effects of the finite size of the αparticle are considered. Two important effects have been found: (i) for the finite size calculation, the absolute αdecay widths decrease by 23 orders of magnitude, and (ii) the finite size effects are strongly dependent on the shell model configuration of the initial nucleus. In the framework of the superfluid model the absolute probabilities of finite size αparticle emission have been calculated for the favored αtransitions of more than 200 spherical nuclei. The theoretical αwidths turn out to be smaller than the experimental ones by a factor of 10, which is approximately constant for all the nuclei studied.
 Publication:

Nuclear Physics A
 Pub Date:
 June 1974
 DOI:
 10.1016/03759474(74)906046
 Bibcode:
 1974NuPhA.226..131F