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arXiv · 2107.13446

A spectator-model way to transverse-momentum-dependent gluon distribution functions

Alessandro Bacchetta·Francesco Giovanni Celiberto·Marco Radici·Pieter Taels
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Abstract

We present exploratory analyses of the 3D gluon content of the proton via a study of unpolarized and polarized gluon TMDs at twist-2, calculated in a spectator model for the parent nucleon. Our approach embodies a flexible parametrization for the spectator-mass function, suited to describe both moderate and small-$x$ effects. All these studies can serve as a useful guidance in the investigation of the gluon dynamics inside nucleons and nuclei, which constitutes one of the major goals of new-generation colliding machines, as the EIC, the HL-LHC, NICA, and the FPF.

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Alessandro Bacchetta, Francesco Giovanni Celiberto, Marco Radici, Pieter Taels. 2021-07-28. A spectator-model way to transverse-momentum-dependent gluon distribution functions. https://doi.org/10.21468/scipostphysproc.8.040

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