Calculation of two-proton radioactivity and application to $^{9}\mathrm{Be},$ $^{6,7}\mathrm{Li},$ $^{3,6}\mathrm{He},$ and $^{2,3}\mathrm{H}$ emissions
Résumé
The radioactivity half-lives have been calculated within a tunneling process through the potential barrier determined from the original version of the generalized liquid drop model and quasimolecular shapes. The sparse experimental data on the radioactivity half-lives of the , , , , , , and nuclei are roughly reproduced when taking into account the value. An analytic formula is provided to obtain rapidly these different half-lives. Using the values extracted from the recent Nubase2020 table, extrapolations to other perhaps possible emitters are proposed. Within the same approach, formulas to determine the , , , and decay half-lives at low excitation energy are also provided.