2012

Probing the scalar-pseudoscalar mixing in the 125 GeV Higgs particle with current data

Barroso, A., Ferreira, P. M., Santos, Rui et al.

Understand

LHC has found hints for a Higgs particle of 125 GeV.

  • We investigate the possibility that such a particle is a mixture of scalar and pseudoscalar states.
  • For definiteness, we concentrate on a two Higgs doublet model with explicit CP violation and soft Z2 violation.
  • Including all Higgs production mechanisms, we determine the current constraints obtained by comparing h -> gamma gamma with h -> V V*, and comment on the information which can be gained by measurements of h -> b \bar{b}.

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