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Unitarity triangles and geometrical description of CP violation with Majorana neutrinos

J. A. Aguilar-Saavedra·G. C. Branco
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Abstract

We generalize the geometrical description of CP violation in the Standard Model in terms of a unitarity triangle. For three left-handed Majorana neutrinos CP violation in the lepton sector is determined by three unitarity triangles. With three additional right-handed neutrinos 15 quadrangles are required to characterize CP violation. We show the relation of the unitarity polygons with physical observables.

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J. A. Aguilar-Saavedra, G. C. Branco. 2000-08-07. Unitarity triangles and geometrical description of CP violation with Majorana neutrinos. https://doi.org/10.1103/physrevd.62.096009

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