Superconformal constraints for QCD conformal anomalies

Details Superconformal constraints for QCD conformal anomalies Superconformal constraints for QCD conformal anomalies

2000-09-06

arxiv.org/abs/hep-ph/0009072v1

Phys.Rev. D65 (2002) 054037

Physics

High Energy Physics

High Energy Physics - Phenomenology

30 pages, 2 figures, LaTeX

Scientific paper

10.1103/PhysRevD.65.054037

Anomalous superconformal Ward identities and commutator algebra in N = 1 super-Yang-Mills theory give rise to constraints between the QCD special conformal anomalies of conformal composite operators. We evaluate the superconformal anomalies that appear in the product of renormalized conformal operators and the trace anomaly in the supersymmetric spinor current and check the constraints at one-loop order. In this way we prove the universality of QCD conformal anomalies, which define the non-diagonal part of the anomalous dimension matrix responsible for scaling violations of exclusive QCD amplitudes at the next-to-leading order.

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