Infrared Quasi Fixed Points and Mass Predictions in the MSSM

We consider the infrared quasi fixed point solutions of the renormalization group equations for the top quark Yukawa coupling and the soft supersymmetry breaking parameters in the MSSM. The existence of IR quasi fixed points together with the values of the gauge coupling, the top-quark and the Z- boson masses allows one to predict the values of Higgs bosons, stop squarks and charginos masses as the functions of only one free parameter, $m_{1/2}$, or the gluino mass. For the lightest Higgs boson mass for $\mu>0$ and $m_{SUSY} \approx 1$TeV we find $m_h=94.3+0.8\pm5+0.6$GeV. The case with $\mu<0$ is excluded by experimental data.