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arXiv · 1608.08922

When the C in CP does not matter: anatomy of order-4 CP eigenstates and their Yukawa interactions

Alfredo Aranda·Igor P. Ivanov·Enrique Jiménez
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Abstract

We explore the origin and Yukawa interactions of the scalars with peculiar CP-properties which were recently found in a multi-Higgs model based on an order-4 CP symmetry. We relate the existence of such scalars to the enhanced freedom of defining CP, even beyond the well-known generalized CP symmetries, which arises in models with several zero-charge scalar fields. We also show that despite possessing exotic CP quantum numbers, these scalars do not have to be inert: they can have CP-conserving Yukawa interactions provided the CP acts on fermions by also mixing generations. This paper focuses on formal aspects---exposed in a pedagogical manner---and includes a brief discussion of possible phenomenological consequences.

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Alfredo Aranda, Igor P. Ivanov, Enrique Jiménez. 2016-08-31. When the C in CP does not matter: anatomy of order-4 CP eigenstates and their Yukawa interactions. https://doi.org/10.1103/physrevd.95.055010

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