Black Hole Particle Emission in Higher-Dimensional Spacetimes
Vítor CardosoDepartment of Physics and Astronomy, The University of Mississippi, Mississippi 38677-1848, USA. [email protected]M. CavagliàDepartment of Physics and Astronomy, The University of Mississippi, University, Mississippi 38677-1848, USALeonardo GualtieriDepartment of Physics and Astronomy, The University of Mississippi, University, Mississippi 38677-1848, USA
2006en
ABI
Abstract
In models with extra dimensions, a black hole evaporates both in the bulk and on the visible brane, where standard model fields live. The exact emissivities of each particle species are needed to determine how the black hole decay proceeds. We compute and discuss the absorption cross sections, the relative emissivities, and the total power output of all known fields in the evaporation phase. Graviton emissivity is highly enhanced as the spacetime dimensionality increases. Therefore, a black hole loses a significant fraction of its mass in the bulk. This result has important consequences for the phenomenology of black holes in models with extra dimensions and black hole detection in particle colliders.
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