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arXiv · 1101.5303

Setting the scale for DIS at large Bjorken x

Simonetta Liuti
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Abstract

We discuss the extension of a systematic perturbative QCD based analysis to the x -> 1 region. After subtracting a number of effects that transcend NLO pQCD evolution, such as target mass corrections and large x resummation effects, the remaining power corrections can be interpreted as dynamical higher twists. The quantitative outcome of the analysis is dominated by the interplay between the value of alpha_S in the infrared region and the higher twists. We uncover a dual role played by alpha_S at large Bjorken x that can be used to experimentally extract its value in the non-perturbative regime.

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Simonetta Liuti. 2011-01-27. Setting the scale for DIS at large Bjorken x. https://doi.org/10.1063/1.3631537

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