Article Dans Une Revue Physical Review C Année : 2022

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 2p 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 2p radioactivity half-lives of the O12, Ne16, Mg19, Fe45, Ni48, Zn54, and Kr67 nuclei are roughly reproduced when taking into account the Q2pexp value. An analytic formula is provided to obtain rapidly these different half-lives. Using the Q2p values extracted from the recent Nubase2020 table, extrapolations to other perhaps possible 2p emitters are proposed. Within the same approach, formulas to determine the Be9, Li6,7, He3,6, and H2,3 decay half-lives at low excitation energy are also provided.

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Dates et versions

hal-03808793 , version 1 (10-10-2022)

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Citer

Guy Royer. 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. Physical Review C, 2022, 106 (3), pp.034605. ⟨10.1103/PhysRevC.106.034605⟩. ⟨hal-03808793⟩
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