QCD resummation for hadronic final states

TL;DR

This paper reviews the principles of all-order QCD calculations, focusing on factorization, exponentiation, and their application to collider observables like event shapes and jet structures.

Contribution

It provides a comprehensive overview of QCD resummation techniques and their application to collider phenomenology, highlighting recent developments.

Findings

Resummation of event-shape distributions achieved.

Application to jet substructure observables demonstrated.

Enhanced understanding of soft and collinear limits in QCD.

Abstract

We review the basic concepts of all-order calculations in Quantum Chromodynamics (QCD) and their application to collider phenomenology. We start by discussing the factorization properties of QCD amplitudes and cross-sections in the soft and collinear limits and their resulting all-order exponentiation. We then discuss several applications of this formalism to observables which are of great interest at particle colliders. In this context, we describe the all-order resummation of event-shape distributions, as well as observables that probe the internal structure of hadronic jets.