New extended Crewther-type relation

Abstract

We propose a conjecture about the detailed structure of the conformal symmetry breaking term in the generalized Crewther relation. We conclude that this conjecture leads to new relations between the QCD expansion coefficients of the Adler D-function and the polarized Bjorken sum rule B${}_{jp}$

Comments: Second part of the talk presented at RADCOR2009-9th International Symposium on Radiative Corrections (Applications of Quantum Field Theory to Phenomenology), October 25-30, Ascona, Switzerland, Submitted to the Proceedings