Author

J. Lansberg

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Review Sep 2026

NNLL fit of the transverse-momentum-dependent distribution of unpolarised gluons to LHCb data on $J/\psi$-pair production

We perform the first fit of the unpolarised gluon transverse-momentum-dependent distribution $f_1^g$ up to next-to-next-to-leading-logarithmic accuracy to the double-differential distribution in the invariant mass and transverse momentum of the latest $J/\psi$-pair production LHCb data. We review previous attempts to d...

Daniel Boer, Jelle Bor, Alice Colpani Serri et al. · 0 citations

Preprint Sep 2026

Towards High-Energy Factorization at Full NLO for Quarkonium Production

Heavy-quarkonium hadroproduction at the LHC can access kinematic configurations in which the partonic center-of-mass energy is much larger than the quarkonium mass and transverse momentum. Fixed-order predictions may become unstable in this regime because large logarithms of the collision energy are not resummed. Exten...

M. Fucilla, J. Lansberg, M. Nefedov et al. · 0 citations