Recent $\alpha$ decay half-lives and analytic expression predictions including superheavy nuclei

Guy Royer (1) , H.F. Zhang (2)

1 SUBATECH - Laboratoire SUBATECH Nantes
2 SNST - School of Nuclear Science and Technology [Lanzhou]

New recent experimental $\alpha$ decay half-lives have been compared with the results obtained from previously proposed formulas depending only on the mass and charge numbers of the $\alpha$ emitter and the Q$\alpha$ value. For the heaviest nuclei they are also compared with calculations using the Density-Dependent M3Y (DDM3Y) effective interaction and the Viola-Seaborg-Sobiczewski (VSS) formulas. The correct agreement allows us to make predictions for the $\alpha$ decay half-lives of other still unknown superheavy nuclei from these analytic formulas using the extrapolated Q$\alpha$ of G. Audi, A. H. Wapstra, and C. Thibault [Nucl. Phys. A729, 337 (2003)].

Domaines: Physique Nucléaire Expérimentale [nucl-ex]

Guy Royer, H.F. Zhang. Recent $\alpha$ decay half-lives and analytic expression predictions including superheavy nuclei. Physical Review C, 2008, 77, pp.037602. ⟨10.1103/PhysRevC.77.037602⟩. ⟨in2p3-00264500⟩