Summary
Applying the principle of analytic extension for generalized functions we derive causal propagators for algebraic non-covariant gauges. The so-generated manifestly causal gluon propagator in the light-cone gauge is used to evaluate two one-loop Feynman integrals which appear in the computation of the three-gluon vertex correction. The result is in agreement with that obtained through the usual prescriptions.
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With partial support of CNPq, Brasília
Supported by Capes, Brasília
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Pimentel, B.M., Suzuki, A.T. & Tomazelli, J.L. Causal propagators for algebraic gauges. Nuov Cim B 111, 751–756 (1996). https://doi.org/10.1007/BF02743405
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DOI: https://doi.org/10.1007/BF02743405