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| VOLUME 120 (2024) | ISSUE 11 | PAGE 842 |
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Heavy quark contributions in Bjorken sum rule with analytic coupling
I. R. Gabdrakhmanov+, N. A. Gramotkov+*, A. V. Kotikov+, O. V. Teryaev+, D. A. Volkova+×, I. A. Zemlyakov°∇
+Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, 141980 Dubna, Russia *Moscow State University, 119991 Moscow, Russia ×Dubna State University, 141980 Dubna, Russia °Tomsk State University, 634010 Tomsk, Russia ∇Department of Physics, Universidad Tecnica Federico Santa Maria, 1680, Avenida Espana Valparaiso, Chile
Abstract
We consider heavy quark contributions to the polarized Bjorken sum rule. We found good agreement between the experimental data and the predictions of analytic QCD. To satisfy the limit of photoproduction, we use new representation of the perturbative part of the polarized Bjorken sum rule, recently proposed. |