Lepton masses and mixings in orbifold models with three Higgs families

Details Lepton masses and mixings in orbifold models with three Higgs families Lepton masses and mixings in orbifold models with three Higgs families

2007-10-19

arxiv.org/abs/0710.3672v2

JHEP0712:080,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

28 pages, 11 figures. References added

Scientific paper

10.1088/1126-6708/2007/12/080

We analyse the phenomenological viability of heterotic Z(3) orbifolds with two Wilson lines, which naturally predict three supersymmetric families of matter and Higgs fields. Given that these models can accommodate realistic scenarios for the quark sector avoiding potentially dangerous flavour-changing neutral currents, we now address the leptonic sector, finding that viable orbifold configurations can in principle be obtained. In particular,it is possible to accomodate present data on charged lepton masses, while avoiding conflict with lepton flavour-violating decays. Concerning the generation of neutrino masses and mixings, we find that Z(3) orbifolds offer several interesting possibilities.

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