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arXiv · 1810.02973

Optimized determination of the polarized Bjorken sum rule in pQCD

D. Kotlorz·S. V. Mikhailov
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Abstract

We present the method of numerical optimization for the perturbative series using the renormalization group in quantum chromodynamics. We apply our approach to the perturbation series in $α_s$ for the coefficient function $C_\text{Bjp}(α_s)$ of the Bjorken sum rule for the polarized deep inelastic lepton-hadron scattering. We optimize the Bjorken sum rule value, $Γ_1^\text{p-n}$, at the COMPASS, SLAC and JLab kinematics and compare the obtained results with the experimental measurements and also with the truncated Bjorken sum rule predictions.

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D. Kotlorz, S. V. Mikhailov. 2019-09-16. Optimized determination of the polarized Bjorken sum rule in pQCD. https://doi.org/10.1103/physrevd.100.056007

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