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CP-odd invariants in models with several Higgs doublets

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arxiv hep-ph/0502118 v1 pith:AQXQIKI7 submitted 2005-02-13 hep-ph

Gustavo C. Branco , M. N. Rebelo , J. I. Silva-Marcos This is my paper · ORCID
classification hep-ph
keywords higgscp-oddinvariantsbreakingdoubletsanalysearbitrarybasis
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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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  1. CP violation in H^\pm \to W^\pm Z: A physical approach for the 2HDM

    hep-ph 2026-02 conditional novelty 6.0 of 10

    H±→W±Z develops a one-loop CP-violating charge asymmetry in the 2HDM from internal bosonic and fermionic loop interferences, with the purely bosonic part vanishing in the alignment limit when the extra scalars are heavy.

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