Our research activities focus on Quantum Chromo Dynamics (QCD), the established theory of the strong interactions. We perform phenomenological studies of lepton-proton and proton-proton scattering, with the goal of using the available experimental data to learn about the distributions of quarks and gluons inside a proton. We are especially interested in finding out how quarks and gluons provide the spin of the proton. Our work also includes precision QCD calculations for observables at hadron colliders, among them the Large Hadron Collider (LHC) at CERN and machines in the US.
