Preprint
Jul 2026
First constraints on the nonperturbative gluon Collins-Soper kernel
The gluon Collins-Soper kernel, which encodes the rapidity evolution of transverse-momentum-dependent gluon distributions, is constrained for the first time in the nonperturbative regime, for transverse momentum scales $q_{T} \in [ 300\text{ MeV}, 1.3\text{ GeV}]$. The constraints are determined in lattice QCD at a clo...
A. Avkhadiev, Yang Fu, P. Shanahan et al.
· 3 citations