DEFORMED SHELL MODEL RESULTS FOR TWO-NEUTRINO POSITRON DOUBLE BETA DECAY OF <sup>84</sup><font>Sr</font>
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Abstract
Half-lives [Formula: see text] for two-neutrino positron double beta decay modes β + EC/ECEC are calculated for 84 Sr , a nucleus of current experimental interest, within the framework of the deformed shell model based on Hartree–Fock states employing a modified Kuo interaction in ( 2 p 3/2 , 1 f 5/2 , 2 p 1/2 , 1 g 9/2 ) space. For a reasonable description of the spectra of 84 Sr and 84 Kr and to generate allowed GT strengths, the single particle energies of the proton and neutron 1 g 9/2 orbitals, relative to the 2 p 3/2 orbital energy, are chosen to be 3.5 MeV and 1.5 MeV for both 84 Sr and 84 Rb and 1.5 MeV and 1.5 MeV for 84 Kr . With this, the calculated half-lives for the β + EC and ECEC modes are ~10 26 yr and ~4×10 24 yr respectively.
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| Category | Codex | Gemma |
|---|---|---|
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| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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