Speaker
Prof.
Borut Bajc
(J Stefan Inst)
Description
Renormalisable supersymmetric grand unified theories typically
employ large representations which lead to a perturbative Landau pole at energies soon above the unification scale. The UV limit may still make sense if the theory approaches a nonperturbative fixed point there. Although the RG flow cannot be followed, one can check various constraints which a consistent fixed point must satisfy. In the talk I will show how supersymmetry breaking influences the existence of fixed points and how close to reality is an SO(10) candidate for a susy GUT with consistent UV limit.
