Matching of transverse momentum dependent distributions at twist-3
High Energy Physics - Phenomenology
2018-10-17 v2 High Energy Physics - Experiment
High Energy Physics - Lattice
Nuclear Experiment
Nuclear Theory
Abstract
We derive the leading order matching of the quark generated polarized transverse momentum dependent (TMD) distributions onto the collinear functions at small values of the transverse distance. Starting from the very definition of the TMD operator and performing the light-cone operator product expansion up to twist-3 order, we evaluate each distribution directly in position space. We primarily consider the cases of Sivers, Boer-Mulders and worm-gear functions. The effects of the TMD process dependence on the matching are explicitly shown. We also discuss the moments of TMD distributions which can be relevant for lattice calculations.
Keywords
Cite
@article{arxiv.1804.08148,
title = {Matching of transverse momentum dependent distributions at twist-3},
author = {Ignazio Scimemi and Alexey Vladimirov},
journal= {arXiv preprint arXiv:1804.08148},
year = {2018}
}
Comments
Version accepted for pubblication