# Effect of Pauli repulsion and transfer on fusion

## TL;DR

This paper investigates how the Pauli exclusion principle and nucleon transfer influence the nucleus-nucleus potential and fusion processes using advanced density-constrained Hartree-Fock methods.

## Contribution

It introduces a new DCFHF technique to study Pauli repulsion and incorporates dynamical effects with DCTDHF to analyze transfer impacts on fusion.

## Key findings

- Pauli repulsion causes a short-range repulsive core in the potential.
- Charge product affects the magnitude of Pauli repulsion.
- Transfer channels with positive Q-values lower the inner potential barrier.

## Abstract

The effect of the Pauli exclusion principle on the nucleus-nucleus bare potential is studied using a new density-constrained extension of the Frozen-Hartree-Fock (DCFHF) technique. The resulting potentials exhibit a repulsion at short distance. The charge product dependence of this Pauli repulsion is investigated. Dynamical effects are then included in the potential with the density-constrained time-dependent Hartree-Fock (DCTDHF) method. In particular, isovector contributions to this potential are used to investigate the role of transfer on fusion, resulting in a lowering of the inner part of the potential for systems with positive Q-value transfer channels.