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Advisor(s)
Abstract(s)
We study the implications of the searches based on H -> tau(+)tau-by the ATLAS and CMS collaborations on the parameter space of the two-Higgs-doublet model (2HDM). In the 2HDM, the scalars can decay into a tau pair with a branching ratio larger than the SM one, leading to constraints on the 2HDM parameter space. We show that in model II, values of tan beta > 1.8 are definitively excluded if the pseudoscalar is in the mass range 110 GeV < m(A) < 145 GeV. We have also discussed the implications for the 2HDM of the recent dimuon search by the ATLAS collaboration for a CP-odd scalar in the mass range 4-12 GeV.
Description
Keywords
Higgs Doublet Model Symmetry-Breaking Boson LEP Mass Stability Unitary Scalars Bounds
Citation
Arhrib A, Chiang C, Ghosh D K, Santos R. Two-Higgs-doublet model in light of the standard model H -> tau(+)tau(-) search at the LHC. Physical Review D. 2012; 11 (85).