On the Eikonal Approximation in AdS Space
High Energy Physics - Theory
2010-01-10 v2
Abstract
We explore the eikonal approximation to graviton exchange in AdS_5 space, as relevant to scattering in gauge theories. We restrict ourselves to the regime where conformal invariance of the dual gauge theory holds, and to large 't Hooft coupling where the computation involves pure gravity. We give a heuristic argument, a direct loop computation, and a shock wave derivation. The scalar propagator in AdS_3 plays a key role, indicating that even at strong coupling, two-dimensional conformal invariance controls high-energy four-dimensional gauge-theory scattering.
Cite
@article{arxiv.0707.2408,
title = {On the Eikonal Approximation in AdS Space},
author = {Richard C. Brower and Matthew J. Strassler and Chung-I Tan},
journal= {arXiv preprint arXiv:0707.2408},
year = {2010}
}
Comments
22 pages, 2 figures; published version: updated references and several clarifying remarks added