Abstract
In the present work, we report a systematic theoretical study of the log ft values for the forbidden β− decay transitions in the 208Pb region. For this, we have considered 206Hg → 206Tl, 208Hg → 208Tl, 206Tl → 206Pb and 208Tl → 208Pb transitions. We have performed shell model calculations using KHH7B interaction in valence shell 58-114 for protons and 100-164 for neutrons by considering 1p − 1h excitations for both protons and neutrons simultaneously for daughter nuclei. This study presents the first shell model results of β−-decay corresponding to the recent experimental data.
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