Universality of Low Energy Absorption Cross Sections for Black Holes
Sumit R. DasTata Institute of Fundamantal Research, Homi Bhabha Road, Mumbai 400 005, IndiaG. W. GibbonsDAMTP, Cambridge University, Silver Street, Cambridge CB3 9EW, United KingdomSamir D. MathurCenter for Theoretical Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
1997en
ABI
Abstract
In this paper we compute the low energy absorption cross section for minimally coupled massles scalars and spin- $1/2$ particles into a general spherically symmetric black hole in arbitrary dimensions. The scalars have a cross section equal to the area of the black hole, while the spin- $1/2$ particles give the area measured in a flat spatial metric conformally related to the true metric.
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