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Phys."],"abstract":"<jats:title>A<jats:sc>bstract<\/jats:sc>\n                     <\/jats:title><jats:p>Models with three Higgs doublets (3HDM) are the source of much recent activity, for they are key components of many solutions to the problems of the Standard Model; from extra sources of CP violation to Dark Matter candidates. We compute explicitly the theoretical bounds for all symmetry-constrained 3HDM arising from the perturbative unitarity of two-to-two scattering amplitudes. In addition, we propose a method based on principal minors that foregoes diagonalization and which is preferable in all models (not only 3HDM) dealing with large scattering matrices.<\/jats:p>","DOI":"10.1007\/jhep08(2022)273","type":"journal-article","created":{"date-parts":[[2022,8,27]],"date-time":"2022-08-27T06:04:31Z","timestamp":1661580271000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":25,"title":["Unitarity bounds for all symmetry-constrained 3HDMs"],"prefix":"10.1007","volume":"2022","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9071-5821","authenticated-orcid":false,"given":"Miguel P.","family":"Bento","sequence":"first","affiliation":[]},{"given":"Jorge C.","family":"Rom\u00e3o","sequence":"additional","affiliation":[]},{"given":"Jo\u00e3o P.","family":"Silva","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2022,8,26]]},"reference":[{"key":"19076_CR1","unstructured":"ATLAS collaboration, Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC, Phys. 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