Universality or Non--Universality of Absorption Cross Sections for Extended Objects

Abstract

The calculation of absorption cross sections for minimal scalars in supergravity backgrounds is an important aspect of the investigation of AdS/CFT correspondence and requires a matching of appropriate wave functions. The low energy case has attracted particular attention. In the following the dependence of the cross section on the matching point is investigated. It is shown that the low energy limit is independent of the matching point and hence exhibits universality. In the high energy limit the independence is not maintained, but the result is believed to possess the correct energy dependence.

10 pages, 2 figures

Cited by in corpus (6)

• Absorption and Emission Spectra of an higher-dimensional Reissner-Nordström black hole
• Effect of Scalar Mass in the Absorption and Emission Spectra of Schwarzschild Black Hole
• Low-Energy Absorption Cross Section for massive scalar and Dirac fermion by $(4+n)$-dimensional Schwarzschild Black Hole
• Absorption Cross Section for S-wave massive Scalar
• Multichannel Framework for Singular Quantum Mechanics
• Graviton Absorption by Non-BPS Branes