The signatures of doubly charged leptons in future linear colliders

TL;DR

This paper explores the potential to detect doubly charged leptons at future linear colliders, analyzing production mechanisms, decay channels, and statistical significance to guide experimental searches.

Contribution

It provides a detailed simulation-based analysis of doubly charged lepton production and detection prospects at upcoming linear colliders, including significance estimates for various channels.

Findings

Hadronic channel offers the best detection prospects.

Production cross sections are calculated for different channels.

Significance exclusion curves are provided for model parameters.

Abstract

We discuss the production of the doubly charged leptons in future linear electron positron colliders, such as the International Linear Collider and Compact Linear Collider. Such states are introduced in extended weak-isospin multiplets by composite models. We discuss the production cross section of $e^-\gamma\rightarrow L^{--}W^{+}$ and carry out analyses for hadronic, semi-leptonic and pure leptonic channels based on the full simulation performance of the Silicon Detector. The 3- and 5-sigma statistical significance exclusion curves are provided in the model parameter space. It is found that the hadronic channel could offer the most possible detectable signature.