Exploring the CP nature of the Higgs within the context of the Type III Two Higgs Doublet Model
Abstract
We investigate the possibility that the newly discovered boson at the LHC belongs to a set of new bosons originating in a general type III two Higgs doublet model. New sources of CP violation from the scalar potential which mix the electrically neutral scalar and pseudo-scalar states lead to the Higgs acquiring a pseudo-scalar admixture. This mixing is tightly constrained by electric dipole moments, electroweak oblique parameters, and vacuum stability. However, within a small region of parameter space, a sizeable pseudo-scalar admixture cannot be excluded and allows for a large enhancement in the Higgs to di-photon signal rate. We discuss how the LHC Higgs data can provide complementary information in constraining the CP nature of the Higgs boson.
- Publication:
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APS Northwest Section Meeting Abstracts
- Pub Date:
- October 2012
- Bibcode:
- 2012APS..NWS.H3006W