Speaker
Daniel Wilhelm
(Mainz U)
Description
We discuss the differential cross sections for electroweak gauge-boson and Higgs production at small and very small transverse momentum q_T.
Large logarithms are resummed using soft-collinear effective theory.
The collinear anomaly generates a non-perturbative scale q^∗, which protects the processes from receiving large long-distance hadronic contributions. A numerical comparison of our predictions with data on the transverse-momentum distribution in Z-boson production at the Tevatron and LHC is given.
Author
Daniel Wilhelm
(Mainz U)
Co-authors
Matthias Neubert
Thomas Becher
(University of Bern)
