Stellar ${\beta }^{-}$-decay rate of ${}^{63}$Ni and its impact on the $s$-process nucleosynthesis in massive stars

Xin-Xu Wang, Bao-Hua Sun, Toshitaka Kajino +4

The ${\beta }^{-}$-decay rate of ${}^{63}$Ni, an important branching point, affects the subsequent nucleosynthesis in the weak component of the slow-neutron capture process (weak $s$-proces…