Sep 9 – 13, 2019
Europe/Zurich timezone

Threshold resummation at next-to-leading power

Sep 11, 2019, 10:00 AM



Robert Szafron (TU München)


In this talk, I am going to report on the resummation of the leading logarithmic corrections for the Drell-Yan production and Higgs production in gluon fusion at the next-to-leading power in threshold expansion. I will describe how the kinematic power-corrections are accounted for and the structure of renormalisation group equations for the generalised soft function which appears after factorisation of the time-ordered products. These include power-suppressed terms in the SCET Lagrangian. The leading logarithmic solution of the RG equations will be presented, I will perform a comparison with known fixed order results, and comment on the impact for phenomenological studies.

Primary author

Robert Szafron (TU München)


Martin Beneke (Technische Universitaet Muenchen (DE)) Mr Sebastian Jaskiewicz (Technical University of Munich) Jian Wang Mathias Garny (CERN) Leonardo Vernazza (Nikhef and University of Amsterdam)

Presentation materials