2011/12/31 by Abdesslam Arhrib, Cheng-Wei Chiang, Dilip Kumar Ghosh +1 · 20 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Higgs boson #Particle physics #Particle physics theoretical and experimental studies #Physics #hep-ph
paper · pdf · doi:10.1103/physrevd.85.115003
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 85(11) (American Physical Society) · 23 pages, 31 figures
arxiv created 2012/04/20 · arxiv updated 2013/05/29
We study the implications of the searches based on H\ensuremath→\ensuremathτ+\ensuremathτ^\ensuremath- 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\ensuremathβ>1.8 are definitively excluded if the pseudoscalar is in the mass range 110 GeV<mA<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.