Reference : CP-conserving multi-Higgs model with irremovable complex coefficients
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
http://hdl.handle.net/2268/201644
CP-conserving multi-Higgs model with irremovable complex coefficients
English
Ivanov, Igor mailto [Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > Inter. fondamentales en physique et astrophysique (IFPA) >]
Silva, Joao []
20-May-2016
Physical Review. D : Particles and Fields
American Physical Society
93
9
095014
Yes
International
0556-2821
1089-4918
College Park
MD
[en] Models beyond the Standard Model (bSM) often involve elaborate Higgs sectors, which can be a source of CP violation. It brings up the question of recognizing in an efficient way whether a model is CP violating. There is a diffuse belief corroborated by all specific multi-Higgs models considered so far that the issue of explicit CP invariance can be linked to the existence of a basis in which all coefficients are real. Here, we prove that this belief is not justified. We present a CP-conserving three-Higgs-doublet model for which no real basis exists. The generalized CP symmetry of this model is of order 4, which leads to the peculiar property of the extra neutral Higgs bosons of being neither CP-even nor CP-odd but “half-odd” under this symmetry transformation.
http://hdl.handle.net/2268/201644
10.1103/PhysRevD.93.095014
https://arxiv.org/abs/1512.09276

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