Renormalization of Gauge theories and the Hopf Algebra of Diagrams

Details Renormalization of Gauge theories and the Hopf Algebra of Diagrams Renormalization of Gauge theories and the Hopf Algebra of Diagrams

2007-05-26

arxiv.org/abs/0705.3906v1

Physics

High Energy Physics

High Energy Physics - Theory

Scientific paper

In 1999 A. Connes and D. Kreimer have discovered a Hopf algebra structure on the Feynman graphs of scalar field theory. They have found that the renormalization can be interpreted as a solving of some Riemann - Hilbert problem. In this work the generalization of their scheme to the case of nonabelian gauge theories is proposed. The action of the gauge group on the Hopf algebra is defined and the proof that this action is in consistent with the Hopf algebra structure is given. The scetch of new proof of S-matrix, based on the Hopf algebra is given.

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