PT Journal
AU Peñuelas, A
   Pich, A
TI Flavour alignment in multi-Higgs-doublet models
SO Journal of High Energy Physics
JI J. High Energy Phys.
PY 2017
BP 084
EP 34pp
VL 12
IS 12
DI 10.1007/JHEP12(2017)084
LA English
DE Beyond Standard Model; Higgs Physics
AB Extended electroweak scalar sectors containing several doublet multiplets require flavour-aligned Yukawa matrices to prevent the appearance at tree level of unwanted flavour-changing neutral-current transitions. We analyse the misalignment induced by one-loop quantum corrections and explore possible generalizations of the alignment condition and their compatibility with current experimental constraints. The hypothesis of flavour alignment at a high scale turns out to be consistent with all known phenomenological tests.
ER