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

preprint2013arXivOpen access

We discuss IR divergences in lepton mass renormalization in Light-Front Quantum Electrodynamics (LFQED) in Feynman gauge. We consider LFQED with Pauli-Villars fields and using old-fashioned time ordered perturbation theory (TOPT), we show that our earlier result regarding cancellation of true IR divergences upto $O(e^4)$ in coherent state basis holds in Feynman gauge also.

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

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