QCD effects to Bjorken unpolarized sum rule for $νN$ deep-inelastic scattering

Physics – High Energy Physics – High Energy Physics - Phenomenology

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3 pages, presented at 4th NuFact'02 Workshop (Neutrino Factories based on Muon Storage Rings), London, England, 1-6 July 2002

Scientific paper

10.1088/0954-3899/29/8/388

The possibility of the first measurement of Bjorken unpolarized sum rule for $F_1$ structure function of $\nu N$ deep-inelastic scattering at Neutrino Factories is commented. The brief summary of various theoretical contributions to this sum rule is given. Using the next-to-leading set of parton distributions functions, we simulate the expected $Q^2$-behavior and emphasize that its measurement can allow to determine the value of the QCD strong coupling constant $\alpha_s$ with reasonable theoretical uncertainty, dominated by the ambiguity in the existing estimates of the twist-4 non-perturbative $1/Q^2$-effect.

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