CP4 miracle: shaping Yukawa sector with CP symmetry of order four
Abstract We explore the phenomenology of a unique three-Higgs-doublet model based on the single CP symmetry of order 4 (CP4) without any accidental symmetries. The CP4 symmetry is imposed on the scalar potential and Yukawa interactions, strongly shaping both sectors of the model and leading to a ver...
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doaj-a517a7176ac942bab36236daba6298042020-11-25T00:39:56ZengSpringerOpenJournal of High Energy Physics1029-84792018-01-012018113910.1007/JHEP01(2018)065CP4 miracle: shaping Yukawa sector with CP symmetry of order fourP.M. Ferreira0Igor P. Ivanov1Enrique Jiménez2Roman Pasechnik3Hugo Serôdio4Centro de Física Teórica e Computacional — FCUL, Universidade de LisboaCFTP, Instituto Superior Técnico, Universidade de LisboaFacultad de Ciencias — CUICBAS, Universidad de ColimaDepartment of Astronomy and Theoretical Physics, Lund UniversityDepartment of Astronomy and Theoretical Physics, Lund UniversityAbstract We explore the phenomenology of a unique three-Higgs-doublet model based on the single CP symmetry of order 4 (CP4) without any accidental symmetries. The CP4 symmetry is imposed on the scalar potential and Yukawa interactions, strongly shaping both sectors of the model and leading to a very characteristic phenomenology. The scalar sector is analyzed in detail, and in the Yukawa sector we list all possible CP4-symmetric structures which do not run into immediate conflict with experiment, namely, do not lead to massless or mass-degenerate quarks nor to insufficient mixing or CP -violation in the CKM matrix. We show that the parameter space of the model, although very constrained by CP4, is large enough to comply with the electroweak precision data and the LHC results for the 125 GeV Higgs boson phenomenology, as well as to perfectly reproduce all fermion masses, mixing, and CP violation. Despite the presence of flavor changing neutral currents mediated by heavy Higgs scalars, we find through a parameter space scan many points which accurately reproduce the kaon CP -violating parameter ϵ K as well as oscillation parameters in K and B (s) mesons. Thus, CP4 offers a novel minimalistic framework for building models with very few assumptions, sufficient predictive power, and rich phenomenology yet to be explored.http://link.springer.com/article/10.1007/JHEP01(2018)065CP violationDiscrete SymmetriesBeyond Standard ModelHiggs Physics |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
P.M. Ferreira Igor P. Ivanov Enrique Jiménez Roman Pasechnik Hugo Serôdio |
spellingShingle |
P.M. Ferreira Igor P. Ivanov Enrique Jiménez Roman Pasechnik Hugo Serôdio CP4 miracle: shaping Yukawa sector with CP symmetry of order four Journal of High Energy Physics CP violation Discrete Symmetries Beyond Standard Model Higgs Physics |
author_facet |
P.M. Ferreira Igor P. Ivanov Enrique Jiménez Roman Pasechnik Hugo Serôdio |
author_sort |
P.M. Ferreira |
title |
CP4 miracle: shaping Yukawa sector with CP symmetry of order four |
title_short |
CP4 miracle: shaping Yukawa sector with CP symmetry of order four |
title_full |
CP4 miracle: shaping Yukawa sector with CP symmetry of order four |
title_fullStr |
CP4 miracle: shaping Yukawa sector with CP symmetry of order four |
title_full_unstemmed |
CP4 miracle: shaping Yukawa sector with CP symmetry of order four |
title_sort |
cp4 miracle: shaping yukawa sector with cp symmetry of order four |
publisher |
SpringerOpen |
series |
Journal of High Energy Physics |
issn |
1029-8479 |
publishDate |
2018-01-01 |
description |
Abstract We explore the phenomenology of a unique three-Higgs-doublet model based on the single CP symmetry of order 4 (CP4) without any accidental symmetries. The CP4 symmetry is imposed on the scalar potential and Yukawa interactions, strongly shaping both sectors of the model and leading to a very characteristic phenomenology. The scalar sector is analyzed in detail, and in the Yukawa sector we list all possible CP4-symmetric structures which do not run into immediate conflict with experiment, namely, do not lead to massless or mass-degenerate quarks nor to insufficient mixing or CP -violation in the CKM matrix. We show that the parameter space of the model, although very constrained by CP4, is large enough to comply with the electroweak precision data and the LHC results for the 125 GeV Higgs boson phenomenology, as well as to perfectly reproduce all fermion masses, mixing, and CP violation. Despite the presence of flavor changing neutral currents mediated by heavy Higgs scalars, we find through a parameter space scan many points which accurately reproduce the kaon CP -violating parameter ϵ K as well as oscillation parameters in K and B (s) mesons. Thus, CP4 offers a novel minimalistic framework for building models with very few assumptions, sufficient predictive power, and rich phenomenology yet to be explored. |
topic |
CP violation Discrete Symmetries Beyond Standard Model Higgs Physics |
url |
http://link.springer.com/article/10.1007/JHEP01(2018)065 |
work_keys_str_mv |
AT pmferreira cp4miracleshapingyukawasectorwithcpsymmetryoforderfour AT igorpivanov cp4miracleshapingyukawasectorwithcpsymmetryoforderfour AT enriquejimenez cp4miracleshapingyukawasectorwithcpsymmetryoforderfour AT romanpasechnik cp4miracleshapingyukawasectorwithcpsymmetryoforderfour AT hugoserodio cp4miracleshapingyukawasectorwithcpsymmetryoforderfour |
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