The Coleman-Weinberg theory is reformulated in terms of flows in coupling-constant space. It is shown that the existence of dynamical symmetry breaking is essentially governed only by the renormalization-group $\beta$ functions. An application is made to the massless Weinberg-Salam model.

• Received 20 November 1980

DOI:https://doi.org/10.1103/PhysRevD.23.1880