Closed-form Absorption Probability of Certain D=5 and D=4 Black Holes and Leading-Order Cross-Section of Generic Extremal p-branes

Abstract

We obtain the closed-form absorption probabilities for minimally-coupled massless scalars propagating in the background of D=5 single-charge and D=4 two-charge black holes. These are the only two examples of extremal black holes with non-vanishing absorption probabilities that can be solved in closed form for arbitrary incident frequencies. In both cases, the absorption probability vanishes when the frequency is below a certain threshold, and we discuss the connection between this phenomenon and the behaviour of geodesics in these black hole backgrounds. We also obtain leading-order absorption cross-sections for generic extremal p-branes, and show that the expression for the cross-section as a function of frequency coincides with the leading-order dependence of the entropy on the temperature in the corresponding near-extremal p-branes.

Latex (3 times), 20 pages

References in corpus (7)

• Scalar Absorption and the Breaking of the World Volume Conformal Invariance
• Exact absorption probabilities for the D3-brane
• Greybody factor for the BTZ black hole and a 5D black hole
• Exact Absorption Probability in the Extremal Six-Dimensional Dyonic String Background
• Absorption of partial waves by three-branes
• AdS_7/CFT_6 Correspondence and Matrix Models of M5-Branes
• The D1-D5 brane system in six dimensions

Cited by in corpus (7)

• Supersymmetric Rotating Black Holes and Causality Violation
• Instanton Moduli and Brane Creation
• Massive-Scalar Absorption by Extremal p-branes
• BFKL dynamics at hadron colliders
• Investigating Brane Resolution With Perturbative Dynamics
• Conformal isometry of the six-dimensional black string and dualities of null geodesics
• Branes and Brane Worlds in M-Theory