Adler function, Bjorken Sum Rule and Crewther-Broadhurst-Kataev relation with generic fermion representations at order O(αs4)

We compute the nonsinglet Adler D-function and the coefficient function for Bjorken polarized sum rules SBjp at order O(αs4) in an extended QCD model with arbitrary number of fermion representations. The Crewther-Broadhurst-Kataev (CBK) relation in this order is confirmed.

Bibliographic Details
Main Author: K.G. Chetyrkin
Format: Article
Language:English
Published: Elsevier 2022-12-01
Series:Nuclear Physics B
Online Access:http://www.sciencedirect.com/science/article/pii/S055032132200339X

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