TY  - JOUR
AU  - Alves, J. M.
AU  - Botella, F. J.
AU  - Branco, G. C.
AU  - Cornet-Gomez, F.
AU  - Nebot, M.
AU  - Silva, J. P.
PY  - 2018
DA  - 2018//
TI  - Symmetry constrained two Higgs doublet models
T2  - Eur. Phys. J. C
JO  - European Physical Journal C
SP  - 630 - 17pp
VL  - 78
IS  - 8
PB  - Springer
AB  - We study two-Higgs-doublet models (2HDM) where Abelian symmetries have been introduced, leading to a drastic reduction in the number of free parameters in the 2HDM. Our analysis is inspired in BGL models, where, as the result of a symmetry of the Lagrangian, there are tree-level scalar mediated Flavour-Changing-Neutral-Currents, with the flavour structure depending only on the CKM matrix. A systematic analysis is done on the various possible schemes, which are classified in different classes, depending on the way the extra symmetries constrain the matrices of couplings defining the flavour structure of the scalar mediated neutral currents. All the resulting flavour textures of the Yukawa couplings are stable under renormalisation since they result from symmetries imposed at the Lagrangian level. We also present a brief phenomenological analysis of the most salient features of each class of symmetry constrained 2HDM.
SN  - 1434-6044
UR  - http://arxiv.org/abs/1803.11199
UR  - https://doi.org/10.1140/epjc/s10052-018-6116-2
DO  - 10.1140/epjc/s10052-018-6116-2
LA  - English
N1  - WOS:000441261300003
ID  - Alves_etal2018
ER  -