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arXiv · 0904.0705

Unconventional phenomenology of a minimal two-Higgs-doublet model

Simon de Visscher·Jean-Marc Gerard·Michel Herquet·Vincent Lemaitre·Fabio Maltoni
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Abstract

Two-Higgs-doublet models (2HDM) are simple extensions of the Standard Model (SM) where the scalar sector is enlarged by adding a weak doublet. As a result, the Higgs potential depends in general on several free parameters which have to be carefully chosen to give predictions consistent with the current precision data. We consider a 2HDM invariant under a twisted custodial symmetry and depending only on three extra parameters beyond the SM ones. This model naturally features an inverted mass spectrum with a light pseudoscalar state and a heavy SM-like Higgs boson. We thoroughly analyze direct and indirect constraints and present a few unconventional though promising signatures at the LHC.

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Simon de Visscher, Jean-Marc Gerard, Michel Herquet, Vincent Lemaitre, Fabio Maltoni. 2009-04-06. Unconventional phenomenology of a minimal two-Higgs-doublet model. https://doi.org/10.1088/1126-6708/2009/08/042

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