Year: 2015
Type: article
Abstract: The Adler function $D$ is found exactly in supersymmetric QCD. Our exact formula relates $D({Q}^{2})$ to the anomalous dimension of the matter superfields $\ensuremath{\gamma}\mathbf{(}{\ensuremath{\alpha}}_{s}({Q}^{2})\mathbf{)}$. En route we prove another theorem: the absence of the so-called singlet contribution to $D$. While such singlet contributions are present in individual supergraphs, they cancel in the sum.
Source: Physical Review Letters
Authors: M. Shifman, K. Stepanyantz
Institutions: University of Minnesota, Lomonosov Moscow State University
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2047149709