Jet Flavour Identification at the CLIC Multi-TeV e+e- Collider

TL;DR

This paper proposes a new jet flavour identification method for multi-TeV e+e- collisions at CLIC, addressing high track density challenges and aiming to improve heavy flavour tagging performance at 3 TeV.

Contribution

The paper introduces a novel jet tagging technique based on charged multiplicity sampling, tailored for high-density environments at multi-TeV energies.

Findings

Method shows promising performance for b-jet tagging at 3 TeV.

Addresses challenges of high track density and jet collimation.

Enhances understanding of heavy flavour hadron decay signatures.

Abstract

Jet flavour identification in multi-TeV e+e- collisions is expected to provide insights on new phenomena at scales beyond those probed by the LHC. The anticipated high track density and jet collimation represent a new challenge to jet tagging algorithms. A method, based on the sampling of the jet charged multiplicity, sensitive to the long decay length and large decay multiplicity of heavy flavour hadrons is proposed and the expected performances for the tagging of e+e- -> bb events at 3 TeV are discussed.