133 citations · 373 across the 9 of their papers we have counts for
12 papers · 1 filter
Two-Loop Fermionic Corrections to Heavy-Quark Pair Production: the Quark-Antiquark Channel
R. Bonciani, A. Ferroglia, T. Gehrmann +2
We evaluate the fermionic two-loop QCD corrections to the heavy-quark pair production process in the quark-antiquark channel. We obtain analytic results which are valid for any val…
Event shapes in annhilation at NNLO
A. Gehrmann-De Ridder, T. Gehrmann, E. W. N. Glover +1
We report first results on the calculation of NNLO corrections to event shape distributions in electron-positron annhilation. The corrections are sizeable for all variables, howeve…
First determination of the strong coupling constant using NNLO predictions for hadronic event shapes in e^+e^- annihilations
G. Dissertori, A. Gehrmann-De Ridder, T. Gehrmann +3
We present the first determination of the strong coupling constant from a fit of next-to-next-to-leading order QCD predictions to event-shape variables, measured in annihi…
Infrared structure of e+e- --> 3 jets at NNLO
A. Gehrmann-De Ridder, T. Gehrmann, E. W. N. Glover +1
We describe the calculation of the next-to-next-to-leading order (NNLO) QCD corrections to three-jet production and related event shape observables in electron-positron annihilatio…
First results on e^+e^- -> 3 jets at NNLO
A. Gehrmann-De Ridder, T. Gehrmann, E. W. N. Glover +1
Precision studies of QCD at colliders are based on measurements of event shapes and jet rates. To match the high experimental accuracy, theoretical predictions to next-to-…
Tools for NNLO QCD Calculations
T. Gehrmann
For precision studies with QCD observables at colliders, higher order perturbative corrections are often mandatory. For exclusive observables, like jet cross sections or differenti…