Black hole particle emission in higher-dimensional spacetimes

Details Black hole particle emission in higher-dimensional spacetimes Black hole particle emission in higher-dimensional spacetimes

2005-11-30

arxiv.org/abs/hep-th/0512002v3

Phys.Rev.Lett. 96 (2006) 071301; Erratum-ibid. 96 (2006) 219902

Physics

High Energy Physics

High Energy Physics - Theory

4 pages, RevTeX 4. v3: Misprints in Tables corrected

Scientific paper

10.1103/PhysRevLett.96.071301

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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