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For particle collision near rapidly rotating Kerr black holes, thecenter-of-mass energy can be arbitrarily high if the angular momentum of eitherof the colliding particles is fine-tuned. Recently, it has been shown thatparticles which are produced by such a particle collision and escape toinfinity cannot be very massive nor very energetic. For electrically chargedblack holes there is a similar phenomenon, where the center-of-mass energy forthe collision of charged particles near the horizon can be arbitrarily high.One might expect that there would exist a similar bound on the energy and massof particles that are produced by such a particle collision and escape toinfinity. In this paper, however, we see that this expectation is not the case.We explicitly show that superheavy and highly energetic charged particlesproduced by the collision near maximally charged black holes can escape toinfinity at least within classical theory if the backreaction and self-force ofthe particle can be neglected.

Escape of superheavy and highly energetic particles produced by particle collisions near maximally charged black holes