High-energy string-brane scattering: leading eikonal and beyond
Abstract
We extend previous techniques for calculations of transplanckian-energy string-string collisions to the high-energy scattering of massless closed strings from a stack of N Dp-branes in Minkowski spacetime. We show that an effective non-trivial metric emerges from the string scattering amplitudes by comparing them against the semiclassical dynamics of high-energy strings in the extremal p-brane background. By changing the energy, impact parameter and effective open string coupling, we are able to explore various interesting regimes and to reproduce classical expectations, including tidal-force excitations, even beyond the leading-eikonal approximation.
Keywords
Cite
@article{arxiv.1008.4773,
title = {High-energy string-brane scattering: leading eikonal and beyond},
author = {Giuseppe D'Appollonio and Paolo Di Vecchia and Rodolfo Russo and Gabriele Veneziano},
journal= {arXiv preprint arXiv:1008.4773},
year = {2010}
}
Comments
40 pages, 5 figures, v2: minor corrections, new appendix with a discussion of the Feynman diagrams contributing to the scattering amplitude in the field theory limit