Abstract:Background: Spin-triplet (S = 1) proton-neutron (pn) pairing in nuclei has been under debate. It is well known that the dynamical pairing affects the nuclear matrix element of the Gamow-Teller (GT) transition and the double β decay. Purpose: We investigate the effect of the pn-pair interaction in the T = 0, S = 1 channel on the low-lying spin-dipole (SD) transition. We then aim at clarifying the distinction of the role in between the SD and GT transitions. Method: We perform a three-body model calculation for … Show more
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