Group-theoretic restrictions on generation of CP-violation in multi-Higgs-doublet models

[en] It has been known since decades that imposing a symmetry group G on the scalar sector of multi-Higgs-doublet models has consequences for CP -violation. In all examples of two- and three-Higgs-doublet models equipped with symmetries, one observes the following intriguing property: if G prevents explicit CP -violation (CPV), at least in the neutral Higgs sector, then it also prevents spontaneous CPV, and if G allows explicit CPV, then it allows for spontaneous CPV. One is led to conjecture that this is a general phenomenon. In this paper, we prove this conjecture for any rephasing symmetry group G and any number of doublets.

Disciplines :

Physics

Author, co-author :

Branco, Gustavo

Ivanov, Igor ; Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > Inter. fondamentales en physique et astrophysique (IFPA)

Language :

English

Title :

Group-theoretic restrictions on generation of CP-violation in multi-Higgs-doublet models

Publication date :

19 January 2016

Journal title :

Journal of High Energy Physics

ISSN :

1126-6708

eISSN :

1029-8479

Publisher :

Institute of Physics Publishing (IOP), Bristol, United Kingdom

Volume :

2016

Pages :

116

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

http://arxiv.org/abs/1511.02764

Available on ORBi :

since 09 September 2016

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