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dc.contributor.authorGrzadkowski, Bohdaneng
dc.contributor.authorØgreid, Odd Magneeng
dc.contributor.authorOsland, Pereng
dc.description.abstractIn Two-Higgs-Doublet models, the conditions for CP violation can be ex- pressed in terms of invariants under U(2) rotations among the two SU(2) Higgs doublet fields. In order to design a strategy for measuring the invariants we express them in terms of observables, i.e., masses and couplings of scalar bosons. We find amplitudes directly sen- sitive to the invariants. Observation of the Standard-Model-like Higgs boson at the LHC severely constrains the models. In particular, in the model with Z₂ symmetry imposed on dimension-4 terms (in order to eliminate tree-level flavour-changing neutral currents), CP violation is strongly suppressed. On the other hand, the most general Two-Higgs-Doublet model (without Z₂ symmetry) is compatible with the LHC data, and would still allow for CP violation to be present in the model. Consequently, also flavour-changing neutral currents would in general be expected. We briefly sketch a strategy for measuring the remaining CP violation.en_US
dc.rightsAttribution CC BYeng
dc.subjectHiggs Physicseng
dc.subjectBeyond Standard Modeleng
dc.subjectCP violationeng
dc.titleMeasuring CP violation in two-Higgs-doublet models in light of the LHC Higgs dataen_US
dc.typePeer reviewed
dc.typeJournal article
dc.rights.holderCopyright the authorsen_US
dc.source.journalJournal of High Energy Physics
dc.subject.nsiVDP::Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431en_US
dc.subject.nsiVDP::Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431nob

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