Pair production of the heavy leptons in future high energy linear e^{+}e^{-} colliders

TL;DR

This paper investigates the potential for future high-energy linear colliders to produce and detect T-odd leptons predicted by the littlest Higgs model with T-parity, highlighting their copious production if not too heavy.

Contribution

It provides a detailed analysis of T-odd lepton pair production at future $ILC$ colliders within the littlest Higgs model with T-parity, emphasizing the detectability of these particles.

Findings

T-odd leptons can be produced copiously at future $ILC$ colliders.

Detection signals are possible if T-odd leptons are not too heavy.

Production cross sections are significant for certain mass ranges.

Abstract

The littlest Higgs model with T-parity predicts the existence of the T-odd particles, which can only be produced in pair. We consider pair production of the T-odd leptons in future high energy linear $e^{+}e^{-}$ collider ($ILC$). Our numerical results show that, as long as the T-odd leptons are not too heavy, they can be copiously produced and their possible signals might be detected via the processes $e^{+}e^{-}\to \bar{L}_{i}L_{j}$ in future $ILC$ experiments.