Speaker
Vladimir Braun
(University of Regensburg)
Description
Conformal symmetry of QCD is restored at the Wilson-Fisher critical point in noninteger space-time dimensions. Correlation functions of multiplicatively renormalizable operators with different anomalous dimensions at the critical point vanish identically.
We show that this property allows one to calculate off-diagonal parts of the anomalous dimension matrices for leading-twist operators from a set of two-point correlation functions of gauge-invariant operators which can be evaluated using standard computeralgebra techniques. As an illustration, we present the results for the NNLO anomalous dimension matrix for flavor-singlet QCD operators for spin N ≤ 8.
Authors
Dr
Alexander Manashov
(Regensburg University)
Konstantin Chetyrkin
(Karlsruhe Institute of Technology)
Vladimir Braun
(University of Regensburg)
