Power corrections and renormalons in Transverse Momentum Distributions
High Energy Physics - Phenomenology
2017-04-05 v2 High Energy Physics - Experiment
High Energy Physics - Lattice
Abstract
We study the power corrections to Transverse Momentum Distributions (TMDs) by analyzing renormalon divergences of the perturbative series. The renomalon divergences arise independently in two constituents of TMDs: the rapidity evolution kernel and the small-b matching coefficient. The renormalon contributions have a non-trivial dependence on the Bjorken variable and the transverse distance. We discuss the consistency requirements for power corrections for TMDs and suggest inputs for the TMD phenomenology in accordance with this study. Both unpolarized quark TMD parton distribution function and fragmentation function are considered.
Keywords
Cite
@article{arxiv.1609.06047,
title = {Power corrections and renormalons in Transverse Momentum Distributions},
author = {Ignazio Scimemi and Alexey Vladimirov},
journal= {arXiv preprint arXiv:1609.06047},
year = {2017}
}
Comments
26 pages, 7 figures, version accepted by JHEP