# Role of dynamic pairing correlations in fission dynamics

## TL;DR

This paper investigates how dynamic pairing correlations influence fission dynamics, revealing that they significantly reduce collective inertias and are affected by Coulomb antipairing, thus impacting traditional fission models.

## Contribution

It introduces a method to incorporate dynamic pairing correlations via particle number projected energy in fission calculations, highlighting their effect on potential energy surfaces and inertias.

## Key findings

- Restricted variation after particle number projection has minimal impact on potential energy surface.
- Collective inertias decrease substantially due to dynamic pairing correlations.
- Coulomb antipairing mitigates the quenching effect on inertias.

## Abstract

We study the role of dynamic pairing correlations in fission dynamics by considering intrinsic Hartree-Fock-Bogoliubov wave functions that are obtained by minimizing the particle number projected energy. For the restricted variational space, the set of self-consistent wave functions with different values of proton and neutron number particle fluctuations are considered. The particle number projected energy is used to define potential energy surface for fission whereas collective inertias are computed within the traditional formulas for the intrinsic states. The results show that the effect of the restricted variation after particle number projection in the potential energy surface is small while collective inertias substantially decrease. On the other hand, we show that this quenching is strongly mitigated when Coulomb antipairing is considered. In the light of these beyond mean-field calculations, the validity of traditional fission calculations is discussed.