Collaborative Research Center TRR 257

B1e : Power corrections in collider processes

Principal Investigator
Prof. Guido Bell Siegen University
Prof. Michal Czakon RWTH Aachen University
Prof. Kirill Melnikov Karlsruhe Institute of Technology

Subject

In this project we will study perturbative and non-perturbative aspects of power corrections to collider processes. Specifically, we plan to develop novel techniques to extend the renormalon calculus to processes with non-abelian interactions, we envisage improving effective-field-theory methods for resummations at sub-leading power, and we will compute power-suppressed terms to cross sections and kinematic distributions that are needed to improve slicing techniques for fixed-order QCD calculations.

Topics

  1. to be filled
P3H-22-036
Title: Linear power corrections to e+ eāˆ’ shape variables in the three-jet region
Type: Paper
Authors: Fabrizio Caola, Silvia Ferrario Ravasio, Giovanni Limatola, Kirill Melnikov, Paolo Nason, Melih A. Ozcelik
arXiv: 2204.02247
Info: Published in JHEP 12 (2022) 062
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