Charge exchange response functions of finite nucleus by an extended Skyrme interaction

The charge exchange resonances in finite nucleus, such as Gamow–Teller (GT) and Spin-Dipole (SD) resonances, have been studied in a self-consistent Hartree–Fock (HF) plus random phase approximation (RPA) approach by employing an extended Skyrme interaction with spin-density dependent terms. The calculations are performed within the KDE0v1 and KDE0v1st Skyrme interactions. The peak energy of GT response function is increased by about 1.4 MeV when the spin-density dependent terms are included. For total response function of SD resonance, the spin-density dependent terms give an overall repulsive contribution to the strength. The specific effect for each multipole presents a multipole dependence. (author)