Microscopic Black Holes as a Source of Ultrahigh Energy gamma-rays
Astrophysics
2009-11-07 v1 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
We investigate the idea that ultrahigh energy gamma-rays (E>10 TeV) can be produced when charged particles are accelerated by microscopic black holes. We begin by showing that microscopic black holes may exist as remnants of primordial black holes or as products of the collisions in the large extra dimensions scenario of high energy cosmic rays with atmospheric particles. We then solve Maxwell's equations on curved spacetime backgrounds in 4, 5 and 6 dimensions and use the solutions to calculate the energy distributions. From the latter we obtain the black hole parameters needed to produce the energies of the observed gamma-rays.
Cite
@article{arxiv.astro-ph/0202513,
title = {Microscopic Black Holes as a Source of Ultrahigh Energy gamma-rays},
author = {Roberto Casadio and Benjamin Harms and Octavian Micu},
journal= {arXiv preprint arXiv:astro-ph/0202513},
year = {2009}
}
Comments
10 pages LaTeX, 2 eps figures. Talk given at Coral Gables Conference, December 12-16, 2001