Abstract
In original twin Higgs model, vacuum misalignment between electroweak and new physics scales is realized by adding explicit \( {\mathrm{\mathbb{Z}}}_2 \) breaking term. Introducing additional twin Higgs could accommodate spontaneous \( {\mathrm{\mathbb{Z}}}_2 \) breaking, which explains origin of this misalignment. We introduce a class of twin two Higgs doublet models with most general scalar potential, and discuss general conditions which trigger electroweak and \( {\mathrm{\mathbb{Z}}}_2 \) symmetry breaking. Various scenarios on realising the vacuum misalignment are systematically discussed in a natural composite two Higgs double model framework: explicit \( {\mathrm{\mathbb{Z}}}_2 \) breaking, radiative \( {\mathrm{\mathbb{Z}}}_2 \) breaking, tadpole-induced \( {\mathrm{\mathbb{Z}}}_2 \) breaking, and quartic-induced \( {\mathrm{\mathbb{Z}}}_2 \) breaking. We investigate the Higgs mass spectra and Higgs phenomenology in these scenarios.
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Yu, JH. A tale of twin Higgs: natural twin two Higgs doublet models. J. High Energ. Phys. 2016, 143 (2016). https://doi.org/10.1007/JHEP12(2016)143
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DOI: https://doi.org/10.1007/JHEP12(2016)143