6533b85cfe1ef96bd12bcbea
RESEARCH PRODUCT
Invariants and flavour in the general Two Higgs Doublet Model
Francisco J. BotellaGustavo C. BrancoM. N. Rebelosubject
PhysicsNuclear and High Energy PhysicsParticle physicsfísica010308 nuclear & particles physicsCabibbo–Kobayashi–Maskawa matrixHigh Energy Physics::PhenomenologyFlavourFOS: Physical sciencesUnitary matrixCP-violationParameter space01 natural sciencesHermitian matrixQuark mass matricesBaryogenesisHigh Energy Physics - PhenomenologyStandard Model (mathematical formulation)Two-Higgs-doublet modelHigh Energy Physics - Phenomenology (hep-ph)0103 physical sciences010306 general physicsParticle Physics - Phenomenologydescription
The flavour structure of the general Two Higgs Doublet Model (2HDM) is analysed and a detailed study of the parameter space is presented, showing that flavour mixing in the 2HDM can be parametrized by various unitary matrices which arise from the misalignment in flavour space between pairs of various Hermitian flavour matrices which can be constructed within the model. This is entirely analogous to the generation of the CKM matrix in the Standard Model (SM). We construct weak basis invariants which can give insight into the physical implications of any flavour model, written in an arbitrary weak basis (WB) in the context of 2HDM. We apply this technique to two special cases, models with MFV and models with NNI structures. In both cases non-trivial CP-odd WB invariants arise in a mass power order much smaller than what one encounters in the SM, which can have important implications for baryogenesis in the framework of the general 2HDM.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-10-30 |