Is there a Landau Pole Problem in QED?
M. Göckeler, R. Horsley, V. Linke, P. Rakow, G. Schierholz, H. Stüben
Abstract
We investigate a lattice version of QED by numerical simulations. For the renormalized charge and mass we find results which are consistent with the renormalized charge vanishing in the continuum limit. A detailed study of the relation between bare and renormalized quantities reveals that the Landau pole lies in a region of parameter space which is made inaccessible by spontaneous chiral symmetry breaking.
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