Quantum gravitational contributions to the beta function of quantum electrodynamics

Details Quantum gravitational contributions to the beta function of quantum electrodynamics Quantum gravitational contributions to the beta function of quantum electrodynamics

2011-03-30

arxiv.org/abs/1103.5824v1

Phys.Lett.B700:86-89,2011

Physics

High Energy Physics

High Energy Physics - Theory

5 pages, 1 figure

Scientific paper

10.1016/j.physletb.2011.04.061

We show in a diagrammatic and regularization independent analysis that the
quadratic contribu- tion to the beta function which has been conjectured to
render quantum electrodynamics asymp- totically free near the Planck scale has
its origin in a surface term. Such surface term is intrinsically arbitrarily
valued and it is argued to vanish in a consistent treatment of the model.

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