Pair production of the T-odd leptons at the LHC

TL;DR

This paper investigates the production mechanisms and cross sections of T-odd leptons predicted by the littlest Higgs model with T-parity at the LHC, highlighting the dominant Drell-Yan process.

Contribution

It provides the first detailed estimation of production cross sections for T-odd leptons via various subprocesses at the LHC, including phenomenological analysis.

Findings

Drell-Yan process cross section can reach 270 fb.

Most subprocesses have very small cross sections.

The study offers insights into the detectability of T-odd leptons at the LHC.

Abstract

The T-odd leptons predicted by the littlest $Higgs$ model with T-parity can be pair produced via the subprocesses $gg\to \ell^{+}_{H}\ell^{-}_{H}$, $q\bar{q}\to \ell^{+}_{H}\ell^{-}_{H}$, $\gamma\gamma\to \ell^{+}_{H}\ell^{-}_{H}$ and $ VV \to \ell^{+}_{H}\ell^{-}_{H}$ ($V$=$W$ or $Z$) at the $CERN$ Large Hadron Collider $(LHC)$. We estimate the hadronic production cross sections for all of these processes and give a simply phenomenology analysis. We find that the cross sections for most of the above processes are very small. However, the value of the cross section for the $Drell-Yan$ process $q\bar{q}\to \ell^{+}_{H}\ell^{-}_{H}$ can reach $270fb$.