A dress of flavour to suit any jet

TL;DR

This paper introduces a new flavour dressing algorithm for jets that is IRC safe and compatible with the anti-$k_T$ algorithm, improving flavour identification in collider experiments.

Contribution

The paper presents a novel IRC safe flavour dressing algorithm that can be integrated with existing jet definitions, enhancing flavour tagging accuracy in collider physics.

Findings

Algorithm is IRC safe to all orders in perturbation theory.

Tested successfully in $ ext{e}^+ ext{e}^-$ and $ ext{p} ext{p}$ environments.

Applied to $ ext{p} ext{p} o ext{Z}+ ext{b}$-jet process.

Abstract

Identifying the flavour of reconstructed hadronic jets is critical for precision phenomenology and the search for new physics at collider experiments, as it allows to pinpoint specific scattering processes and reject backgrounds. Jet measurements at the LHC are almost universally performed using the anti-$k_T$ algorithm, however no approach exists to define the jet flavour for this algorithm that is infrared and collinear (IRC) safe. We propose a new approach, a flavour dressing algorithm, that is IRC safe to all orders in perturbation theory and can be combined with any definition of a jet. We test the algorithm in $\mathrm{e}^+\mathrm{e}^-$ and $\mathrm{p}\mathrm{p}$ environments, and consider the $\mathrm{p}\mathrm{p} \to \mathrm{Z}+\mathrm{b}\text{-jet}$ process as a practical application.