arXiv:1407.1879·v2·High Energy Physics — Phenomenology
Non-perturbative fixed points and renormalization group improved effective potential
A. G. Dias🇧🇷 · A. F. Ferrari🇧🇷 · J. D. Gomez🇧🇷 · A. A. Natale🇧🇷 · A. G. Quinto🇧🇷
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.
Comments: 6 pages, 8 figures, References added. Matching the journal version