Overcharging a Reissner-Nordström Taub-NUT regular black hole

The destruction of a regular black hole event horizon might provide us the possibility to access regions inside horizon. This paper investigates overcharging charged Taub-NUT via scattering field and absorption particle. For scalar scattering, both near-extremal extremal holes cannot be overcharged. test particle absorption, result shows that still exists while one can destroyed. However, if charge energy cross in continuous path, not