Structure analysis of the generalized correlator of quark and gluon for a spin-1/2 target

Abstract

We analyze the structure of generalized off-diagonal and transverse-momentum dependent quark-quark and gluon-gluon correlators for a spin-1/2 hadron. Using the light-front formalism, we provide a parametrization in terms of the parton generalized transverse-momentum dependent distributions that emphasizes the multipole structure of the correlator. The results for the quark-quark correlation functions are consistent with an alternative parametrization given in terms of Lorentz covariant structures. The parametrization for the gluon-gluon generalized correlator is presented for the first time and allows one to introduce new correlation functions which can be relevant for phenomenological applications.

30 pages, 1 figure, 2 tables

References in corpus (5)

• Generalized parton correlation functions for a spin-1/2 hadron
• Azimuthal and Single Spin Asymmetries in Hard Scattering Processes
• Generalized parton correlation functions for a spin-0 hadron
• Unified framework for generalized and transverse-momentum dependent parton distributions within a 3Q light-cone picture of the nucleon
• Next-to-leading order corrections in exclusive meson production

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