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

Abstract

Charged Higgs phenomenology and detection chance at future linear colliders through the production process $e^{-}e^{+} \ra H^{+}H^{-} \ra τ^{+}ντ\barν$ 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.

19 pages, 11 figures, 2 tables

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• Parameter dependence and analysis of the 2HDM neutral Higgs boson pair production and decay at future lepton colliders
• Observability of Charged Higgs through Triple or Double Higgs Production in a General Two Higgs Doublet Model at an e+e- Linear Collider