Light nucleus emission within a generalized liquid-drop model and quasimolecular shapes Original Research Article

The potential barrier governing the light-nucleus emission has been determined within a generalized liquid-drop model including the proximity effects between the light and daughter nuclei and adjusted to reproduce the experimental Q value. The partial decay half-lives have been calculated within the WKB barrier penetration probability, without introducing preformation factor. The agreement with the experimental data for the 14C, 20O, 23F, 24−26Ne, 28−30Mg and 32Si emission is good. Predictions for other possible decays are presented meeting two criteria: partial half-life ≤1030s and branching ratio relative to α emission ≥10−24. An analytic formula is proposed for the half-life of the light-nucleus decay.