Infra-red Divergences in Light-Front QED and Coherent State Basis

2012/06/30 by Jai D. More, Anuradha Misra · 1 citation
Physics and Astronomy · #hep-th #hep-ph

paper · pdf · doi:10.1103/physrevd.86.065037

published as Phys. Rev. D 86,065037 (2012) · 44 pages,11 figures

arxiv created 2012/10/03 · arxiv updated 2012/10/04

Abstract

We present a next to leading order calculation of electron mass renormalization in Light-Front Quantum Electrodynamics (LFQED) using old-fashioned time ordered perturbation theory (TOPT). We show that the true infrared divergences in δm² get canceled up to O(e⁴) if one uses coherent state basis instead of fock basis to calculate the transition matrix elements.

Cited by

• Fermion Self Energy Correction in Light-Front QED using Coherent State Basis