Probing the scalar-pseudoscalar mixing in the 125 GeV Higgs particle with current data
High Energy Physics - Phenomenology
2013-05-30 v1
Abstract
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}. We find bounds |s_2| < 0.83 at one sigma, where |s_2|=0 (|s_2|=1) corresponds to a pure scalar (pure pseudoscalar) state.
Keywords
Cite
@article{arxiv.1205.4247,
title = {Probing the scalar-pseudoscalar mixing in the 125 GeV Higgs particle with current data},
author = {A. Barroso and P. M. Ferreira and Rui Santos and João P. Silva},
journal= {arXiv preprint arXiv:1205.4247},
year = {2013}
}
Comments
12 pages, 4 figures