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 $e^{-}{e}^{+}\text{ra}{H}^{+}{H}^{-}\text{ra}{\tau }^{+}\nu \tau \bar{\nu }$ 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.

Comments: 19 pages, 11 figures, 2 tables