Generalized TMDs and the exclusive double Drell-Yan process

Abstract

Generalized transverse momentum dependent parton distributions (GTMDs) are the most general parton correlation functions of hadrons. By considering the exclusive double Drell-Yan process it is shown for the first time how quark GTMDs can be measured. Specific GTMDs can be addressed by means of polarization observables.

6 pages, 1 figure, typos fixed

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