Charged Higgs Detection in the $\tau\nu$ Decay Mode at Future Linear Colliders

TL;DR

This paper investigates the potential to detect charged Higgs bosons decaying into tau and neutrino at future linear colliders, demonstrating significant discovery prospects within the MSSM framework.

Contribution

It provides a detailed simulation study of charged Higgs detection via the tau neutrino decay mode at linear colliders, including spin and kinematic effects.

Findings

Detectable signals for charged Higgs masses beyond 5σ significance.

Effective detection at colliders with energies of 500 and 1000 GeV.

Analysis within the MSSM framework with tanβ=10.

Abstract

Charged Higgs phenomenology and detection chance at future linear colliders through the production process $e^{-}e^{+} \ra H^{+}H^{-} \ra \tau^{+}\nu \tau \bar{\nu}$ is studied. Both charged Higgs bosons are considered to decay to $\tau\nu$ and the hadronic decay of $\tau$ leptons is analyzed taking into account spin and kinematics effects using a proper simulation of the $\tau$ lepton decay. It is shown that within the MSSM framework, with \tanb = 10, a wide range of charged Higgs masses would have detectable signal beyond the $5\sigma$ statistical significance at linear colliders with $\sqrt{s} = 500$ and 1000 GeV.