Impact of finite-range tensor terms in the Gogny force on the β-decay of magic nuclei

Effects of finite-range tensor force on β -decay of magic and semimagic nuclei of 34 Si, 68 , 78 Ni, and 132 Sn have been investigated using the self-consistent Hartree–Fock plus random-phase approximation model. The tensor force shifts the low-lying Gamow–Teller states downward and systematically improves the calculations of Q and log ft values. Consequently, it systematically reduces the deviations between the theoretical and experimental data and significantly improves the calculation of β -decay half-lives. This effect is similar to that of zero-range tensor force.