Abstract
In this work, the large-scale shell-model calculations for β-decay properties have been done. The β-delayed γ-ray spectroscopy has been performed recently at ILL, Grenoble [M. Si et al., Phys. Rev. C 106, 014302 (2022)] to study β-decay properties corresponding to 137Te ((7/2−)) → 137I (Jf) transitions. We have done systematic shell-model study for nuclear structure properties and compared the obtained results with the experimental data. Finally, the β-decay properties such as the logft values and average shape factors have been reported. This is the first theoretical calculation for the logft values corresponding to these new experimental data. In addition, we have also reported calculated logft results for 135Te ((7/2−)) → 135I (Jf) transitions.
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