Non-perturbative fixed points and renormalization group improved effective potential
arXiv:1407.1879 · doi:10.1016/j.physletb.2014.10.017
Abstract
The stability conditions of a renormalization group improved effective potential have been discussed in the case of scalar QED and QCD with a colorless scalar. We calculate the same potential in these models assuming the existence of non-perturbative fixed points associated to a conformal phase. In the case of scalar QED the barrier of instability found previously is barely displaced as we approach the fixed point, and in the case of QCD with a colorless scalar not only the barrier is changed but the local minimum of the potential is also changed.
6 pages, 8 figures, References added. Matching the journal version
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