On Systematics of Double-Beta Decay Half Lives

Abstract

Recommended 2β−(2ν) half-lives and their systematics [1, 2] are examined in the framework of a semi-empirical approach. Impacts of nuclear deformation, transition energy, shape coexistence, and forbidden transitions on half-live values were observed. These findings were used to predict T1/2 for 36 isotopes of interest. Current results are compared with available data.