Sep 9 – 13, 2019
Europe/Zurich timezone

Next-to-leading power factorization in threshold DY production

Sep 12, 2019, 10:00 AM
25m
Cubiculaire

Cubiculaire

Speaker

Mr Sebastian Jaskiewicz (Technical University of Munich)

Description

Soft Collinear Effective Theory (SCET) formalism has been successfully applied to a number of important observables in collider physics improving the accuracy of fixed-order predictions via the leading power resummation of large logarithmic contributions which appear in certain regions of phase space. Recently, a renewed interest in subleading power corrections has arisen in the theoretical community. In this talk, I will discuss the framework for the threshold resummation of the Drell-Yan process and Higgs production via gluon fusion at next-to-leading power using SCET. I will prove the general factorisation formula and explain the new objects that emerge beyond leading power: collinear jet functions and generalized soft functions. The ingredients necessary to perform leading logarithmic resummation at next-to-leading power will be shown and I will present selected fixed order results.

Primary authors

Martin Beneke (Technische Universitaet Muenchen (DE)) Mr Sebastian Jaskiewicz (Technical University of Munich) Leonardo Vernazza (Nikhef and University of Amsterdam) Alessandro Broggio

Presentation materials