Systematics of the spontaneous and simultaneous emission of 2-particles
Department of Physics, Guru Nanak Dev University, 143 005, Amritsar, India
Accepted: 16 September 2022
Published online: 9 October 2022
The tunneling of two -particles through the interaction potential barrier is investigated to calculate the logarithmic values of half-lives ’s for even-even nuclei lying in medium and heavy mass region and the obtained results are compared with those reported in the literature. A simple linear relation connecting half-lives and disintegration energies is proposed. We have also analysed the reduced decay widths in terms of pairing correlations. Furthermore, employing the periodic-orbit and BCS theories within microscopic-macroscopic formalism, we have calculated the disintegration energies -values in order to find the possibility of the existence of double -radioactivity in unknown superheavy nuclei. Subsequently, the logarithmic values of ’s are calculated. Moreover, the study of branching ratios leads us to investigate the competition of double -decay with -decay and SF. Our calculations predict that there is possibility of double -radioactivity in nuclei owing to the magicity at N=184. We believe that this work can play a significant role in the experimental search for double -radioactivity.
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