Abstract
In the general Two-Higgs Doublet Model it has been shown that the Higgs potential can be expressed in terms of gauge-independent quantities that transform covariantly under unitary mixing of the doublets. In particular, stability, electroweak symmetry breaking, and CP symmetry can be understood in a concise way, avoiding unphysical gauge degrees of freedom. We complete this program and show how all the masses, the trilinear and quartic scalar interactions, the gauge-boson-Higgs interactions, as well as the Yukawa couplings in the general THDM can be expressed in a gauge-invariant way.
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Sartore, L., Maniatis, M., Schienbein, I. et al. The general Two-Higgs Doublet Model in a gauge-invariant form. J. High Energ. Phys. 2022, 51 (2022). https://doi.org/10.1007/JHEP12(2022)051
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DOI: https://doi.org/10.1007/JHEP12(2022)051