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Scimemi, Ignazio and Vladimirov, Alexey (2018) Matching of transverse momentum dependent distributions at twist-3. European physical journal C, 78 (10). ISSN 1434-6044
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Official URL: http://dx.doi.org/10.1140/epjc/s10052-018-6263-5
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.
Item Type: | Article |
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Additional Information: | ©Springer |
Uncontrolled Keywords: | Parton distributions; Spin asymmetries; Drell-Yan; Distribution amplitudes; Vector-mesons; Qcd; Scattering; Evolution; Hadron |
Subjects: | Sciences > Physics > Physics-Mathematical models Sciences > Physics > Mathematical physics |
ID Code: | 50162 |
Deposited On: | 28 Nov 2018 13:20 |
Last Modified: | 10 Dec 2018 15:09 |
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