Scattering in plane-wave backgrounds: infra-red effects and pole structure
High Energy Physics - Theory
2013-05-01 v2 High Energy Physics - Phenomenology
Abstract
We consider two aspects of scattering in strong plane wave backgrounds. First, we show that the infra-red divergences in elastic scattering depend on the structure of the background, but can be removed using the usual Bloch-Nordsieck approach. Second, we analyse the infinite series of shifted-mass-shell poles in the particle (Volkov) propagator using lightfront quantisation. The complete series of poles is shown to describe a single, on-shell, propagating particle.
Cite
@article{arxiv.1210.6840,
title = {Scattering in plane-wave backgrounds: infra-red effects and pole structure},
author = {Anton Ilderton and Greger Torgrimsson},
journal= {arXiv preprint arXiv:1210.6840},
year = {2013}
}
Comments
12 pages, 4 figures. References added, typos corrected