Abstract
We revise existing limits on the D-dimensional Planck scale from the nonobservation of microscopic black holes produced by high energy cosmic neutrinos in scenarios with large extra dimensions. Previous studies have neglected the energy radiated in gravitational waves by the multipole moments of the incoming shock waves. We include the effects of energy loss, as well as form factors for black hole production and recent null results from cosmic ray detectors. For we obtain These bounds are among the most stringent and conservative to date.
- Received 24 July 2003
DOI:https://doi.org/10.1103/PhysRevD.68.104025
©2003 American Physical Society