QCD calculations for jet substructure

TL;DR

This paper provides new analytic calculations of QCD jet invariant mass distributions using three substructure algorithms, offering insights into their behavior and potential improvements, exemplified by the modified mass-drop tagger.

Contribution

It introduces novel analytic methods to describe jet substructure algorithms, enhancing understanding and suggesting improvements, especially for the modified mass-drop tagger.

Findings

Analytic descriptions of jet mass distributions for trimming, pruning, and mass-drop taggers.

Insights into the behavior and optimization of these jet substructure tools.

Demonstration of the remarkable properties of the modified mass-drop tagger.

Abstract

We present results on novel analytic calculations to describe invariant mass distributions of QCD jets with three substructure algorithms: trimming, pruning and the mass-drop taggers. These results not only lead to considerable insight into the behaviour of these tools, but also show how they can be improved. As an example, we discuss the remarkable properties of the modified mass-drop tagger.