Operator Regularization of Feynman diagrams at multi-loop order

Details Operator Regularization of Feynman diagrams at multi-loop order Operator Regularization of Feynman diagrams at multi-loop order

2010-06-09

arxiv.org/abs/1006.1806v10

Can.J.Phys.89:289,2011

Physics

High Energy Physics

High Energy Physics - Theory

22 pages, 5 figures; added references and Mathematica code

Scientific paper

10.1139/P11-016

It may be possible to use operator regularization with Feynman diagrams, which would greatly simplify its use as it has so far been limited to the more complicated Schwinger approach. Operator regularization, unlike $\zeta$-function regularization, is not limited to one-loop order, and preserves supersymmetry unlike dimensional regularization. In practice the use of operator regularization in the context of Feynman diagrams is found not to complicate the calculation.

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