Sep 9 – 13, 2019
Europe/Zurich timezone

Threshold resummation at next-to-leading power

Sep 11, 2019, 10:00 AM
25m
Cubiculaire

Cubiculaire

Speaker

Robert Szafron (TU München)

Description

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)

Co-authors

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