arXiv:2404.01873·v1·High Energy Physics — Phenomenology
Bjorken sum rule with analytic coupling
I.R. Gabdrakhmanov🇷🇺 · N.A Gramotkov🇷🇺 · A.V. Kotikov🇷🇺 · O.V. Teryaev🇷🇺 · D.A. Volkova🇷🇺 · I.A. Zemlyakov🇨🇱
Abstract
We found good agreement between the experimental data obtained for the polarized Bjorken sum rule and the predictions of analytic QCD, as well as a strong difference between these data and the results obtained in the framework of perturbative QCD. To satisfy the limit of photoproduction and take into account Gerasimov-Drell-Hearn and Burkhardt-Cottingham sum rules, we develope new representation of the perturbative part of the polarized Bjorken sum rule.
Comments: 17 pages, 6 figures