Document details

H → Zr in the complex two Higgs doublet model

Author(s): Fontes, Duarte ; Romão, J. C. ; Silva, João Paulo

Date: 2014

Persistent ID: http://hdl.handle.net/10400.21/4976

Origin: Repositório Científico do Instituto Politécnico de Lisboa

Subject(s): Higgs Physics; Beyond Standard Model; Higgs Physics; Higgs Physics; Beyond Standard Model; Beyond Standard Model


Description

The latest LHC data confirmed the existence of a Higgs-like particle and made interesting measurements on its decays into gamma gamma, ZZ*, WW*, tau(+)tau(-), and b (b) over bar. It is expected that a decay into Z gamma might be measured at the next LHC round, for which there already exists an upper bound. The Higgs-like particle could be a mixture of scalar with a relatively large component of pseudoscalar. We compute the decay of such a mixed state into Z gamma, and we study its properties in the context of the complex two Higgs doublet model, analysing the effect of the current measurements on the four versions of this model. We show that a measurement of the h -> Z gamma rate at a level consistent with the SM can be used to place interesting constraints on the pseudoscalar component. We also comment on the issue of a wrong sign Yukawa coupling for the bottom in Type II models.

Document Type Journal article
Language English
Contributor(s) RCIPL
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