Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2012-01-31
Physics
High Energy Physics
High Energy Physics - Phenomenology
LaTeX, 6 pages, Talk given by KT, Proceedings of the 2011 International Workshop on Future Linear Colliders (LCWS11), Granada,
Scientific paper
We study the feasibility of the Type-X two Higgs doublet model (THDM-X) at collider experiments. In the THDM-X, new Higgs bosons mostly decay into tau leptons in the wide range of the parameter space. Such scalar bosons are less constrained by current experimental data, because of the suppressed quark Yukawa interactions. We discuss a search strategy of the THDM-X with multi-tau lepton final states at International linear collider and Large Hadron Collider. By using the collinear approximation, we show that a four tau lepton signature (e^+e^- -> HA -> 4\tau) can be a clean signal.
Kanemura Shinya
Tsumura Koji
Yokoya Hiroshi
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