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arXiv · 1312.4972

Infra-red divergences in Light Front Field Theory and Coherent State Formalism

Jai D. More·Anuradha Misra
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Abstract

We discuss fermion self energy correction in light front QED using a coherent state basis. We show that if one uses coherent state basis instead of fock basis to calculate the transition matrix elements the true infrared divergences in $δm^2$ get canceled up to $O(e^4)$ . We show this in Light-front as well as in Feynman gauge.

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Jai D. More, Anuradha Misra. 2013-12-17. Infra-red divergences in Light Front Field Theory and Coherent State Formalism. https://doi.org/10.1007/s00601-013-0794-y

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