26-30 March 2012
University of Bonn
Europe/Berlin timezone

Electroweak Gauge-Boson and Higgs Production at Small qT : Infrared Safety from the Collinear Anomaly

27 Mar 2012, 17:10
Small Lecture Hall, Mathematical Institute (University of Bonn)

Small Lecture Hall, Mathematical Institute

University of Bonn

Hadronic final states Hadronic final states


Daniel Wilhelm (Mainz U)


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.

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