Scale symmetry and quantum corrections

We use the scale invariant regularization method to study loop corrections in a scale symmetric model of two interacting scalar fields. The method resembles the usual procedure of dimensional regularization, but the renormalization scale mu is a function of dynamical fields. The model is free of the trace anomaly and accommodates spontaneous breaking of the symmetry. It is also necessarily nonrenormalizable. We show how the nonstandard method results in beta functions and corrections to the effective scalar potential different than in the usual regularization, while at the same time it does not spoil the Callan-Symanzik equation.