Abstract

In the light front formulation of quantum field gauge theories linear infrared singularities are present which must be addressed. In works by Zhang and Harindranath a prescription is given for the treatment of these singularities. They show that the application of this prescription leads to the cancellation of the linear infrared singularities in loop diagrams. In this work we do a second-order perturbative calculation and calculate the cross sections for e+e− → e+e− and give results for eγ → eγ, e+e− → μ+μ−, eμ → eμ applying the prescription to cancel the linear infrared singularity, whenever present. We show that the well-known expressions of the different cross sections for these processes are exactly reproduced.

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