Paper
Towards Precision Gluon Densities at Small $x$: From Resummation to Collider Observables
Authors
Francesco Giovanni Celiberto, Marco Bonvini
Abstract
Accurate gluon densities at small are essential for reducing theoretical uncertainties in collider predictions, yet remain one of the least constrained ingredients in global analyses. We report recent advances in the resummation of small- logarithms in the gluon sector, focusing on collinear distributions and their interplay with transverse-momentum-dependent formulations. Particular attention is paid to the impact of gluon-proton spin correlations and to the emergence of unintegrated gluon densities derived from resummed dynamics. These developments aim to fill the current precision gap in the small- region and enable robust applications to LHC and future-collider observables.