Momentum routing invariance in Feynman diagrams and quantum symmetry breakings

Details Momentum routing invariance in Feynman diagrams and quantum symmetry breakings Momentum routing invariance in Feynman diagrams and quantum symmetry breakings

2011-10-27

arxiv.org/abs/1110.6186v2

Physics

High Energy Physics

High Energy Physics - Theory

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Scientific paper

Quantum symmetry breakings in perturbation theory is verified to be connected to breakdown of momentum routing invariance (MRI) in the loops of a Feynman diagram. Such property turns out as a necessary condition which any supersymmetric and gauge invariant regularization that operates in the physical dimension of the underlying field theoretical model must fulfill. We show that the implicit regularization framework implements this program to arbitrary loop order and illustrate with examples.

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