A two-Higgs doublet model with remarkable CP properties

2010/01/31 by P. M. Ferreira, João P. Silva, Joao P. Silva · 2 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-ph

paper · pdf · doi:10.1140/epjc/s10052-010-1384-5

published as Eur.Phys.J.C69:45-52,2010 · RevTex, 4 pages, no figures Version2: Remarkable additional conclusion => title & text changes; section added

arxiv created 2010/02/08 · openalex publication_date 2010/07/14 · arxiv updated 2011/02/09 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

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.

Citations

• Review of Particle Physics
• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)

Cited by

• A soft origin for CKM-type CP violation
• Abelian symmetries in multi-Higgs-doublet models

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