  In the context of brane-world theories, the production cross-section for
black holes may be greatly enhanced. Such black holes can in principle lead to
detectable signals via their Hawking evaporation to brane-localized modes. We
calculate, in the semiclassical approximation, the leading corrections to the
energy spectrum (the greybody factors) for decay into scalar fields, as a
function of the number of toroidally compactified extra dimensions, and partial
wave number.
