2012/05/18 by A. Barroso, P. M. Ferreira, Rui Santos +1 · 1 citation
Physics and Astronomy · #hep-ph
paper · pdf · doi:10.1103/physrevd.86.015022
12 pages, 4 figures
arxiv created 2012/05/18 · arxiv updated 2013/05/29
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 b. We find bounds |s2| < 0.83 at one sigma, where |s2|=0 (|s2|=1) corresponds to a pure scalar (pure pseudoscalar) state.