Topics in Black Hole Production

TL;DR

This paper revisits a model of multiple black hole production in high-energy particle collisions, correcting previous calculations to show the process is suppressed rather than enhanced, and discusses semiclassical gravity interpretations.

Contribution

It provides a revised calculation of black hole production cross sections, showing suppression instead of enhancement, and offers insights into the semiclassical gravity perspective.

Findings

Black hole production cross section is suppressed by 1/s.

Revised calculations contradict earlier enhancement predictions.

Discussion on wavepacket subdivision in semiclassical gravity.

Abstract

We revisit Voloshin's model of multiple black hole production in trans-Planckian elementary particle collisions in D=4. Our revised computation shows that the cross section to produce N additional black holes is suppressed by 1/s, rather than being enhanced as was originally found. We also review the semiclassical gravity picture of black hole production from hep-th/0409131, making additional comments about the meaning of wavepacket subdivision.