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CP-odd invariants in models with several Higgs doublets

Gustavo C. Branco·M. N. Rebelo·J. I. Silva-Marcos
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Abstract

We present CP-odd Higgs-basis invariants, which can be used to signal CP violation in a multi-Higgs system, written in an arbitrary Higgs basis. It is shown through specific examples how these CP-odd invariants can also be useful to determine the character of CP breaking (i.e. whether it is hard or soft CP breaking) in a given Higgs Lagrangian. We analyse in detail the cases of two and three Higgs doublets.

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Gustavo C. Branco, M. N. Rebelo, J. I. Silva-Marcos. 2005-02-13. CP-odd invariants in models with several Higgs doublets. https://doi.org/10.1016/j.physletb.2005.03.075

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