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

Abstract

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.

20 pages, 6 figures. Submitted to Phys. Rev. D. arXiv admin note: substantial text overlap with arXiv:1206.3097

References in corpus (3)

• Nonperturbative Pauli-Villars regularization of vacuum polarization in light-front QED
• Restoration of the chiral limit in Pauli-Villars-regulated light-front QED
• Infra-red Divergences in Light-Front QED and Coherent State Basis

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• Application of Coherent State Approach for the cancellation of Infrared divergences to all orders in LFQED
• Scalar theories and symmetry breaking in the light-front coupled-cluster method
• Self Energy Correction in Light Front QED And Coherent State Basis