N-photon amplitudes in a plane-wave background
High Energy Physics - Theory
2021-10-04 v1 High Energy Physics - Phenomenology
Abstract
We use the worldline formalism to derive master formulas for the one-loop N-photon amplitudes in a plane-wave background, for both scalar and spinor QED. This generalises previous work by Ilderton and Torgrimsson for the vacuum polarisation case, although with some change in methodology since, instead of evaluating the path integral on the semi-classical trajectory, we use the special kinematics of the plane-wave background to uncover the crypto-gaussian character of this type of worldline path integral.
Cite
@article{arxiv.2105.08173,
title = {N-photon amplitudes in a plane-wave background},
author = {James P. Edwards and Christian Schubert},
journal= {arXiv preprint arXiv:2105.08173},
year = {2021}
}
Comments
16 pages, no figures