Aspects of Planckian Scattering beyond the Eikonal
High Energy Physics - Theory
2015-06-26 v1
Abstract
We discuss an approach to compute two-particle scattering amplitudes for spinless particles colliding at Planckian centre-of-mass energies, with increasing momentum transfer away from the eikonal limit. For electrically neutral particles, the amplitude exhibits poles on the imaginary squared cm energy axis at locations that are distinct from those appearing in the eikonal limit. For charged particles, electromagnetic and gravitational effects remain decoupled for the eikonal situation as also the leading order (in momentum transfer, or equivalently, the impact parameter) correction, but mix non-trivially for higher orders.
Cite
@article{arxiv.hep-th/9504060,
title = {Aspects of Planckian Scattering beyond the Eikonal},
author = {Saurya Das and Parthasarathi Majumdar},
journal= {arXiv preprint arXiv:hep-th/9504060},
year = {2015}
}
Comments
11 pages, Revtex