PoS - Proceedings of Science
Volume 449 - The European Physical Society Conference on High Energy Physics (EPS-HEP2023) - T06 QCD and Hadronic Physics
$J/\psi-$pair production at NLL in TMD factorisation at the LHC
A. Colpani Serri*, J. Bor, D. Boer and J.P. Lansberg
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Pre-published on: February 23, 2024
Published on: March 21, 2024
$J/\psi-$pair production at the LHC is currently one of the few tools available to probe gluon transverse momentum distributions (TMDs). In this context, data from LHCb in the collider mode have the potential to probe the evolution of the unpolarised-gluon TMDs and to measure the distribution of the linearly-polarised gluon in unpolarised protons for the first time.
In this proceedings contribution, improved predictions obtained for the LHC (at $\sqrt{s}$ = 13 TeV) up to next-to-leading logarithm (NLL) in TMD factorisation are presented.
We show the obtained predictions of transverse-momentum distributions at different invariant masses and rapidities computed in the LHCb acceptance along with PDF uncertainty. We predict the azimuthal modulations of the cross section that arise from linearly-polarised gluons.
DOI: https://doi.org/10.22323/1.449.0272
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