Generalized CP Invariance and the Yukawa sector of Two-Higgs Models

Details Generalized CP Invariance and the Yukawa sector of Two-Higgs Models Generalized CP Invariance and the Yukawa sector of Two-Higgs Models

2010-01-04

arxiv.org/abs/1001.0574v2

Eur.Phys.J.C69:45-52,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

RevTex, 4 pages, no figures Version2: Remarkable additional conclusion => title & text changes; section added

Scientific paper

10.1140/epjc/s10052-010-1384-5

We analyze generalized CP symmetries of two-Higgs doublet models, extending them from the scalar to the fermion sector of the theory. We show that, with a single exception, those symmetries imply massless fermions. The single model which accommodates a fermionic mass spectrum compatible with experimental data possesses a remarkable feature. It displays a new type of spontaneous CP violation, which occurs not in the scalar sector responsible for the symmetry breaking mechanism but, rather, in the fermion sector.

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