Gamow-Teller transitions of neutron-rich $N=82,81$ nuclei by shell-model calculations

Noritaka Shimizu, Tomoaki Togashi, Yutaka Utsuno

$\beta$-decay half-lives of neutron-rich nuclei around $N=82$ are key data to understand the $r$-process nucleosynthesis. We performed large-scale shell-model calculations in this regi…