Rotating Black Holes at Future Colliders. III. Determination of Black Hole Evolution

TL;DR

This paper calculates the detailed Hawking radiation spectra for higher-dimensional rotating black holes at colliders, emphasizing the importance of angular momentum in black hole evolution.

Contribution

It provides comprehensive greybody factors and spectra for brane-localized spinor and vector emissions, completing the analysis of black hole decay and evolution.

Findings

More than half of the black hole mass is emitted while still highly rotating.

Angular momentum significantly affects the black hole's radiation and evolution.

The results support the necessity of including angular momentum in black hole models.

Abstract

TeV scale gravity scenario predicts that the black hole production dominates over all other interactions above the scale and that the Large Hadron Collider will be a black hole factory. Such higher dimensional black holes mainly decay into the standard model fields via the Hawking radiation whose spectrum can be computed from the greybody factor. Here we complete the series of our work by showing the greybody factors and the resultant spectra for the brane localized spinor and vector field emissions for arbitrary frequencies. Combining these results with the previous works, we determine the complete radiation spectra and the subsequent time evolution of the black hole. We find that, for a typical event, well more than half a black hole mass is emitted when the hole is still highly rotating, confirming our previous claim that it is important to take into account the angular momentum of black holes.