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

to be filled

Related publications

P3H-24-052
Title: Linear power corrections to single top production and decay at the LHC in the narrow width approximation
Type: Paper
Authors: Sergei Makarov, Kirill Melnikov, Paolo Nason, Melih A. Ozcelik
arXiv: N.A.
Info:

P3H-24-093
Title: $B_c \to \eta_c$ form factors at large recoil: Interplay of soft-quark and soft-gluon dynamics
Type: Paper
Authors: Guido Bell, Philipp Böer, Thorsten Feldmann, Dennis Horstmann, Vladyslav Shtabovenko
https://arxiv.org/abs/2412.14149
Info:

P3H-22-036
Title: Linear power corrections to e+ e− 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