Rotating Ay\'on-Beato-Garc\'ia black hole as a particle accelerator

TL;DR

This paper investigates the collision energies near rotating Ayón-Beato-García black holes, revealing conditions under which particles can achieve arbitrarily high energies, and compares these results with Kerr and Kerr-Newman black holes.

Contribution

It provides the first analysis of particle collision energies near rotating regular ABG black holes, including extremal and non-extremal cases, highlighting the effects of charge and rotation.

Findings

Extremal ABG black holes can produce arbitrarily high CM energy.

Non-extremal ABG black holes have a finite upper limit of CM energy.

CM energy depends on both charge Q and rotation parameter a.

Abstract

We study the collision of two particles with equal masses moving in the equatorial plane near horizon of the rotating regular Ay\'on-Beato-Garc\'ia (ABG) black hole (BH) and calculate the center-of-mass (CM) energy for the colliding particles for both extremal and non-extremal cases. It turns out that CM energy depends not only on rotation parameter $a$ but also on charge $Q$. Particularly for the extremal rotating regular ABG BH, CM energy of two colliding particles could be arbitrarily high for critical angular momentum of particles. Furthermore, we also show that, for a non-extremal BH, there exist a finite upper limit of CM energy, which changes with charge $Q$. A comparison, with Kerr and Kerr-Newman black holes, is included.