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Hawking emission of gravitons in higher dimensions: non-rotating black holes

Authors: V. Cardoso, M. Cavaglià and L. Gualtieri

Ref.: JHEP 02, 021 (2006)

Abstract: We compute the absorption cross section and the total power carried by gravitons in the evaporation process of a higher-dimensional non-rotating black hole. These results are applied to a model of extra dimensions with standard model fields propagating on a brane. The emission of gravitons in the bulk is highly enhanced as the spacetime dimensionality increases. If the black hole is rotating, graviton loss is likely to dominate the emission spectrum. The implications for the detection of black holes in particle colliders and ultrahigh-energy cosmic ray air showers are briefly discussed.