Black Hole Particle Emission in Higher-Dimensional Spacetimes
Vítor CardosoUniversity of Rome “La Sapienza ”M. CavagliàDepartment of Physics and Astronomy, The University of Mississippi, University, Mississippi 38677-1848, USALeonardo GualtieriCentro Studi e Ricerche E. Fermi, Compendio Viminale, 00184 Rome, Italy, and Dipartimento di Fisica Università di Roma “La Sapienza”/Sezione INFN Roma1, Piazzale Aldo Moro 2, 00185 Rome, Italy
2006en
ABI
Annotatsiya
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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