Pairing corrections within the density-dependent delta interaction

Abstract

The validity of the Strutinsky prescriptions is tested within a state-dependent pairing interaction instead of a constant pairing strength. The amplitude of the pairing field is determined to reproduce the experimental values of the pairing gaps in the ground state of the parent [Formula: see text]Th. The density-dependent delta interaction was used to compute the quantities related to the pairing corrections along a fission trajectory, such as Fermi energies, pairing gaps, and pairing effects. An enhancement of the pairing gaps during the penetration of the second barrier was evidenced in the case of the state-dependent pairing formalism. Moreover, the outer barrier calculated in the framework of the macroscopic–microscopic model is strongly suppressed.