Speaker
Giovanni Antonio Chirilli
Description
Perturbative QCD calculations in the light-cone gauge have long suffered from the ambiguity associated with the regularization of the poles in the gluon propagator. Using the functional integral method, we re-derive the known sub-gauge conditions for the θ-function gauges and identify the sub-gauge condition for the principal value regularization of the gluon propagator’s light-cone poles. Within the same method we obtain the sub-gauge condition for the gluon propagator in the temporal gauge as well.