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Composite Operator Renormalization And The Trace Anomaly, David G. Robertson
Composite Operator Renormalization And The Trace Anomaly, David G. Robertson
Physics Faculty Scholarship
The general connection between the renormalization of elementary fields and couplings and of appropriate composite operators is discussed. A general method is presented for computing the anomalous dimension matrix of the lagrangian composite operators, to all orders in perturbation theory, in terms of the elementary beta functions and anomalous dimensions. The trace anomaly for a general field theory is determined.