Generalized LKF transformations for $N$-point fermion correlators in QED
High Energy Physics - Theory
2022-09-21 v1
Abstract
Within the worldline approach to quantum electrodynamics (QED), a change of the photon's covariant gauge parameter is investigated to analyse the non-perturbative gauge dependence of the configuration space fermion correlation functions, deriving a generalization of the Landau-Kalatnikov-Fradkin transformations (LKFt). These transformations reveal how the non-perturbative gauge dependence of position space amplitudes can be absorbed into a multiplicative exponential factor.
Cite
@article{arxiv.2201.12448,
title = {Generalized LKF transformations for $N$-point fermion correlators in QED},
author = {José Nicasio and Christian Schubert and Naser Ahmadiniaz and James P. Edwards},
journal= {arXiv preprint arXiv:2201.12448},
year = {2022}
}
Comments
Prepared for the Proceedings of the 20th Lomonosov Conference on Elementary Particle Physics, held in August 2021, based on a talk given by Jos\'e Nicasio on the results of arXiv:2012.10536 [hep-th] and arXiv:2010.04160 [hep-th]