We investigate the gravitational energy emission of an ultrarelativistic particle radially falling into a D-dimensional black hole. We numerically integrate the equations describing black hole gravitational perturbations and obtain the energy spectra, total energy, and angular distribution of the emitted gravitational radiation. The black hole quasinormal modes for scalar, vector, and tensor perturbations are computed in the WKB approximation. We discuss our results in the context of black hole production at the TeV scale.
E. Berti et al., "Gravitational Energy Loss in High Energy Particle Collisions: Ultrarelativistic Plunge into a Multidimensional Black Hole," Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 69, no. 12, American Physical Society (APS), Jun 2004.
The definitive version is available at https://doi.org/10.1103/PhysRevD.69.124011
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© 2004 American Physical Society (APS), All rights reserved.