Document details

Large pseudoscalar Yukawa couplings in the complex 2HDM

Author(s): Fontes, Duarte ; Romão, Jorge C. ; Santos, Rui ; Silva, João P.

Date: 2015

Persistent ID: http://hdl.handle.net/10400.21/5902

Origin: Repositório Científico do Instituto Politécnico de Lisboa

Subject(s): Higgs Physics; Beyond Standard Model


Description

We start by presenting the current status of a complex flavour conserving two-Higgs doublet model. We will focus on some very interesting scenarios where unexpectedly the light Higgs couplings to leptons and to b-quarks can have a large pseudoscalar component with a vanishing scalar component. Predictions for the allowed parameter space at end of the next run with a total collected luminosity of 300 fb(-1) and 3000 fb(-1) are also discussed. These scenarios are not excluded by present data and most probably will survive the next LHC run. However, a measurement of the mixing angle phi(tau), between the scalar and pseudoscalar component of the 125 GeV Higgs, in the decay h -> tau(+)tau(-) will be able to probe many of these scenarios, even with low luminosity. Similarly, a measurement of phi(t) in the vertex (t) over bar th could help to constrain the low tan beta region in the Type I model.

Document Type Journal article
Language English
Contributor(s) RCIPL
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