The MSSM at the low tanβ fixed point is meta-stable

We analyse the mass spectrum of the Constrained Minimal Supersymmetric Standard Model at the low tanβ fixed point. We find that the model only satisfies experimental and dark matter bounds in regions where the vacuum is meta-stable – i.e. where it violates `unbounded from belowʹ (UFB) bounds. Adding a small amount of R-parity violation solves these problems but the absolute upper bound on the lowest higgs mass mh0<97 GeV remains. We present the predicted sparticle mass spectrum as a function of the gluino mass mg.