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

Bacchetta, Alessandro; Celiberto, Francesco Giovanni; Radici, Marco; Taels, Pieter

doi:10.21468/SciPostPhysProc.8.040

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

Alessandro Bacchetta
(
- Pavia U. and
- INFN, Pavia
)
,
Francesco Giovanni Celiberto
(
- ECT, Trento and
- Fond. Bruno Kessler, Povo and
- TIFPA-INFN, Trento
)
,
Marco Radici
(
- INFN, Pavia
)
,
Pieter Taels
(
- Ecole Polytechnique, CPHT
)

Jul 28, 2021

7 pages

Published in:

SciPost Phys.Proc. 8 (2022) 040

Contribution to:

- DIS2021
, 040
,
- DIS2021

Published: Jul 12, 2022

e-Print:

2107.13446 [hep-ph]

DOI:

10.21468/SciPostPhysProc.8.040,
10.21468/ScipostPhysProc.8.040 (publication)

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Abstract: (SciPost Fundation)

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.

Note:

7 pages, 2 figures, contribution to the proceedings of the XXVIII International Workshop on Deep Inelastic Scattering and Related Subjects (DIS2021), Stony Brook, New York, USA, 12-16 April, 2021, version accepted for publication on SciPost Physics Proceedings

talk
spectator: model
gluon: distribution function
CERN LHC Coll: upgrade
nucleon
NICA
nucleus
parametrization
transverse momentum dependence
eRHIC

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