Speaker
Konstantin Chetyrkin
(not set)
Description
We extend available $\cal{O}(\alpha_s^4)$ results for two main ingredients of
the Crewther-Broadhurst-Kataev (CBK) relation, namely the Adler $D$-function
and the Bjorken polarized sum rule $C^{Bjp}$ by including
contributions from any number of (in general different) fermion
representations. The results are used to confirm the CBK relation and get new
information on {β}-expansion for the $D$-function and $C^{Bjp}$.
Primary author
Konstantin Chetyrkin
(not set)
