On Bjorken sum rule: heavy quarks and analytic coupling

TL;DR

This paper demonstrates that analytic QCD calculations, including heavy quark effects, align well with experimental data on the polarized Bjorken sum rule, supporting the validity of the analytic approach.

Contribution

It introduces a method to incorporate heavy quark contributions into analytic QCD calculations of the Bjorken sum rule, showing improved agreement with data.

Findings

Good agreement between analytic QCD calculations and experimental data

Heavy quark contributions are effectively included in the analysis

Supports the use of analytic QCD in sum rule evaluations

Abstract

We present the results of [1], where good agreement was obtained between calculations within the framework of analytic QCD and experimental data on polarized Bjorken sum rule. The heavy quark contributions are taken into account.