Prof.
Berthold Stech
(Heidelberg University)
13/04/2011, 09:15
The combination of flavor symmetry with grand unification is considered. The flavor group SO(3) is used. For the flavon fields (singlets with respect of the GUT group) and the Higgs fields (singlets with respect to the generation group) a simple form for the effective potentials is postulated. It is applied to describe the spontaneous symmetry breaking of flavon fields which are responsible ...
Michal Malinsky
(IFIC/CSIC and University of Valencia)
13/04/2011, 09:40
In SO(10) unifications with extended matter sector some of the drawbacks of the traditional models can be resolved. On one hand, it is easy to smear the down-quark - charged-lepton Yukawa degeneracy, yet without large Higgs representations. In the flipped variant, supersymmetric SO(10) can be broken down to the SM at the renormalizable level even with multiplets not bigger than the adjoint.
Prof.
Ilja Dorsner
(University of Sarajevo)
13/04/2011, 10:05
The measured forward-backward asymmetry in the top pair production at Tevatron might be explained by exchange of an additional colored weak singlet. This state emerges naturally in a theoretically well-motivated class of grand unified models and it has some unique properties.
Namely, it interacts with the up-quarks only when they are from different generations. It is also a leptoquark as it...
