TY  - JOUR
AU  - Alves, J. M.
AU  - Botella, F. J.
AU  - Miro, C.
AU  - Nebot, M.
PY  - 2023
DA  - 2023//
TI  - Spontaneous CP violation and μ-τ symmetry intwo-Higgs-doublet models with flavour conservation
T2  - Eur. Phys. J. C
JO  - European Physical Journal C
SP  - 940 - 12pp
VL  - 83
IS  - 10
PB  - Springer
AB  - In multi-Higgs-doublet models, requiring simultaneously that (i) CP violation only arises spontaneously, (ii)tree level scalar flavour changing couplings are absent and (iii) the fermion mixing matrix is CP violating, can only be achieved in a very specific manner. A general approach with new clarifying insights on the question is presented. Considering the quark sector, that peculiar possibility is not viable on phenomenological grounds. We show that, considering the lepton sector, it is highly interesting and leads to viable models with mu-tau symmetric PMNS matrices. Phenomenological implications of the models, both for Dirac and Majorana (in a type I seesaw scenario) neutrinos, are analysed.
SN  - 1434-6044
UR  - https://arxiv.org/abs/2306.14952
UR  - https://doi.org/10.1140/epjc/s10052-023-12111-8
DO  - 10.1140/epjc/s10052-023-12111-8
LA  - English
N1  - WOS:001087967500002
ID  - Alves_etal2023
ER  -