Black Holes Radiate Mainly on the Brane

TL;DR

This paper demonstrates that small black holes in models with large extra dimensions predominantly radiate energy on the brane, making Hawking radiation potentially observable in future high-energy colliders.

Contribution

It challenges previous claims by showing that black holes mainly emit radiation on the brane rather than into extra-dimensional modes.

Findings

Most energy from black hole evaporation is emitted on the brane.

Radiation into Kaluza-Klein modes is less significant than previously thought.

Potential for observing Hawking radiation in collider experiments.

Abstract

We examine the evaporation of a small black hole on a brane in a world with large extra dimensions. Since the masses of many Kaluza-Klein modes are much smaller than the Hawking temperature of the black hole, it has been claimed that most of the energy is radiated into these modes. We show that this is incorrect. Most of the energy goes into the modes on the brane. This raises the possibility of observing Hawking radiation in future high energy colliders if there are large extra dimensions.