Callan-Symanzik and renormalization group equation in theories with spontaneously broken symmetry
Abstract
Callan-Symanzik and renormalization group equation are discussed for the U(1)-axial model and it is shown that the symmetric model is not the asymptotic version of the spontaneously broken one due to mass logarithms in the β-functions. The Callan-Symanzik equation of the standard model is seen to have the same form as the one of the simple model.
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