paper

Positivity Constraints on Anomalies in Supersymmetric Gauge Theories

arXiv:hep-th/9711035 · doi:10.1103/PhysRevD.57.7570

Abstract

The relation between the trace and R-current anomalies in supersymmetric theories implies that the U, U and U anomalies which are matched in studies of N=1 Seiberg duality satisfy positivity constraints. Some constraints are rigorous and others conjectured as four-dimensional generalizations of the Zamolodchikov -theorem. These constraints are tested in a large number of N=1 supersymmetric gauge theories in the non-Abelian Coulomb phase, and they are satisfied in all renormalizable models with unique anomaly-free R-current, including those with accidental symmetry. Most striking is the fact that the flow of the Euler anomaly coefficient, , is always positive, as conjectured by Cardy.

latex, 36 pages

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