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arXiv · 1701.02114

Leptophilic neutral Higgs bosons in two Higgs doublet model at a linear collider

Majid Hashemi
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Abstract

This paper addresses the question of observability of neutral Higgs bosons through the leptonic decay in a two Higgs doublet model (2HDM). Both scalar and pseudoscalar Higgs bosons ($H,~A$) are considered. The model is set to type IV to enhance the leptonic decay. In such a scenario, a signal production process like $e^+e^- \to A^0H^0 \to ττμμ$ or $μμττ$ would provide a clear signal on top of the background in a di-muon invariant mass distribution far from the $Z$ boson pole mass. The analysis is based on a $τ$-id algorithm which preselects events if they have two $τ$ jets by requiring a hadronic $τ$ decay. Several benchmark points are defined for the search, requiring a linear collider operating at $\sqrt{s} =$ 0.5 and 1 TeV. It is shown that the signal can be observed on top of the background in all benchmark points at an integrated luminosity of 1000 $fb^{-1}$.

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Majid Hashemi. 2017-01-10. Leptophilic neutral Higgs bosons in two Higgs doublet model at a linear collider. https://doi.org/10.1140/epjc%2Fs10052-017-4863-0

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