Analysis of $\alpha_s$ from the realization of quark-hadron duality
High Energy Physics - Phenomenology
2015-06-16 v1
Abstract
We present an analysis of the role of the running coupling constant at the intersection of perturbative and nonperturbative QCD in the context of the quark-hadron duality \`a la Bloom-Gilman. Our framework will be the unpolarized structure function of the proton in the resonance region. We suggest that the realization of duality is related to the inclusion of nonperturbative effects at the level of the coupling constant. The outcome of our analysis is a smooth transition from perturbative to nonperturbative QCD physics, embodied in the running of the coupling constant at intermediate scales.
Keywords
Cite
@article{arxiv.1307.4211,
title = {Analysis of $\alpha_s$ from the realization of quark-hadron duality},
author = {A. Courtoy and Simonetta Liuti},
journal= {arXiv preprint arXiv:1307.4211},
year = {2015}
}
Comments
To appear in the proceedings of the QCD Evolution Workshop, JLab, May 6-10, 2013. Includes ws-ijmpcs.cls