3 papers
hep-ph2005
Sudakov Resummations at Higher Orders
S. Moch, A. Vogt, J. Vermaseren
We summarize our recent results on the resummation of hard-scattering coefficient functions and on-shell form factors in massless perturbative QCD. The threshold resummation has be…
hep-ph2005
The Quark Form Factor at Higher Orders
S. Moch, J. A. M. Vermaseren, A. Vogt
We study the electromagnetic on-shell form factor of quarks in massless perturbative QCD. We derive the complete pole part in dimensional regularization at three loops, and extend…
hep-ph2004
The Three-Loop Splitting Functions in QCD: The Non-Singlet Case
S. Moch, J. A. M. Vermaseren, A. Vogt
We compute the next-to-next-to-leading order (NNLO) contributions to the three splitting functions governing the evolution of unpolarized non-singlet combinations of quark densitie…