Speaker
Vasja Susič
(Jožef Stefan Institute)
Description
We explicitly show that the model with a Higgs breaking sector 27 + 27bar + 351' + 351'bar + 78 provides a realistic scenario for an E6 SUSY Grand Unified Theory. Although the 78 is not necessary for obtaining a Standard Model vacuum, doublet-triplet splitting cannot be performed in the simplified case, where the 78 is omitted. We study in detail the Yukawa sector of the model, where three ``fermionic'' copies of the 27 couple to the Higgs breaking sector via two terms with symmetric Yukawa
matrices. The low energy fields turn out to be those of the MSSM, and their low energy mass matrices are computed. Finally, a successful fit of the second and third generation of these particles to the low energy data is obtained. The model is thus
the best realistic candidate for a minimal renormalizable supersymmetric E6 theory.
Authors
Borut Bajc
(J. Stefan Institute, Ljubljana)
Kaladi Babu
(Oklahoma State University)
Vasja Susič
(Jožef Stefan Institute)
