Lepton flavor violating signals of the LHT model via e^{+}e^{-} and \gamma\gamma collisions at the ILC

TL;DR

This paper investigates how the littlest Higgs model with T-parity could produce detectable lepton flavor violating signals at the ILC through electron-positron and photon-photon collisions, considering existing experimental constraints.

Contribution

It analyzes the LFV signals in the LHT model at the ILC, incorporating constraints from rare decay processes, and assesses their observability in future experiments.

Findings

LHT model can generate significant LFV signals at the ILC.

LFV signals might be observable in future ILC experiments.

Constraints from rare decays limit the parameter space for LFV signals.

Abstract

Taking into account the constraints on the free parameters of the littlest Higgs model with T-parity (called $LHT$ model) from some rare decay processes, such as $\mu\rightarrow e\gamma$ and $\mu\rightarrow 3e$, we consider the contributions of the $LHT$ model to the lepton flavor violating ($LFV$) processes $e^{+}e^{-}\rightarrow l_{i}\bar{l}_{j}$ and $\gamma\gamma\rightarrow l_{i}\bar{l}_{j}$ ($i\neq j$). We find that the $LHT$ model can indeed produce significant contributions to these $LFV$ processes and its $LFV$ signal might has a chance of being observed in the future $ILC$ experiments.