Divergent Vertices and Anomalous Dimensions
Patrick J. O'Donnell, T. P. Wong · Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · 1971
A study of scale-invariance breaking and its connection with anomalous dimensions is presented. A new relation between the anomaly in scale dimension of the pion field and the lowenergy form of its gravitational vertex function is obtained, without the use of perturbation theory.