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Comparison of NNLO and all-orders estimates of corrections to the GLS and Bjorken sum rules

Paul M. Brooks·C. J. Maxwell
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Abstract

For the GLS and Bjorken DIS sum rules we compare fixed-order NNLO perturbative QCD estimates, and all-orders resummed estimates, with the available data, in order to assess the reliability of fixed-order perturbation theory at rather small Q^2 values. Fits are also performed for non-perturbative power corrections using a recently proposed model.

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Paul M. Brooks, C. J. Maxwell. 2007-06-22. Comparison of NNLO and all-orders estimates of corrections to the GLS and Bjorken sum rules. https://arxiv.org/abs/hep-ph/0608339

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