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.

Department(s)

Physics

Sponsor(s)

FCT (Fundação para a Ciência e Tecnologia)
Fundação Calouste Gulbenkian

Comments

V. C. acknowledges financial support from FCT through the PRAXIS XXI program and from Fundação Calouste Gulbenkian

Keywords and Phrases

Absorption cross sections; Graviton emissivity; Particle emissions; Relative emissivities; Absorption; Colliding beam accelerators; Computation theory; Evaporation; Mathematical models; Elementary particles

International Standard Serial Number (ISSN)

0031-9007

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2006 American Physical Society (APS), All rights reserved.

Publication Date

01 Feb 2006

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