Signatures of discrete symmetries in the scalar sector
Lavoura, L.
Original · EN
I discuss methods to identify the presence of dicrete symmetries in the two-Higgs-doublet model by observing the masses and the cubic and quartic interactions of the scalars. The symmetries considered are a Z₂ symmetry under which ϕ₂ → - ϕ₂, and a CP symmetry which enforces real coupling constants in the Higgs potential. Those symmetries are spontaneously broken, and the Z₂ symmetry may also be softly broken. I identify the signatures in the interactions of the scalars that these symmetries leave after their breaking.
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