Towards leading-twist $T$-odd TMD gluon distributions

Abstract

We present exploratory studies of the 3D proton tomography through polarized $T$-odd gluon TMDs at leading twist, obtained in a spectator-model framework. We embody in our approach a flexible parameterization for the spectator-mass spectral function, suited to catch both small- and moderate-$x$ effects. All these studies are relevant to unveil the gluon dynamics inside hadrons, which represents a core research line of studies at new-generation colliders, such as the Electron-Ion Collider, NICA-SPD, the High-Luminosity LHC, and the Forward Physics Facility.

5 pages, 1 figure, presented by F.G. Celiberto at the the 24th International Spin Symposium (SPIN2021), 18-22 October 2021, Matsue, Shimane Prefecture, Japan

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• Pseudoscalar heavy-quarkonium hadroproduction from nonrelativistic fragmentation at NLL/NLO${}^{+}$
• The Forward Physics Facility at the High-Luminosity LHC