Resurrecting the minimal renormalizable supersymmetric SU(5) model

Understand

It is a well-known fact that the minimal renormalizable supersymmetric SU(5) model is ruled out assuming superpartner masses of the order of a few TeV.

• Giving up this constraint and assuming only SU(5) boundary conditions for the soft terms, we find that the model is still alive.
• The viable region of the parameter space typically features superpartner masses of order $10^2$ to $10^4$ TeV, with tan beta values between 2 and 5, but lighter spectra with single states around 10 TeV are also possible.
• The main constraints come from proton decay, the Higgs mass, the requirement of the SU(5) spectrum being reasonably below the Planck scale, and the lifetime of the universe.