\CTran{Gauge coupling Unification in the MSSM}

\vspace*{0.5cm}

%\begin{center}\Green{$\bullet$} \Blue{One loop}\end{center}

%\vspace*{0.0cm}

%\centerline{\psfig{figure=susyunification.eps,height=3.5in}}


\begin{center}\Green{$\bullet$} \Blue{2 loop + thresholds from SUSY particles}
\end{center}

\vspace*{1.3cm}

\centerline{\psfig{figure=bagger.eps,height=5.0in}}

\vspace*{0.0cm}

\begin{center}\Green{$\Rightarrow$} \Blue{but 
\Red{$\alpha^{exp}_s=0.118\pm 0.002$}}
\Green{$\Rightarrow$} \Blue{We need a GUT model !!}\end{center}
\vspace*{0.5cm}
\Green{$\bullet$} \Blue{Minimal SU(5) model : Large \Red{$\alpha_s > 0.13 $}}
 \Green{$\bullet$} \Blue{Missing Doublet model based on SU(5) gauge group :
Small  \Red{$\alpha_s < 0.12 $}} \Green{$\bullet$} 
\Blue{Flipped SU(5) and SO(10)
correct values of \Red{$\alpha_s$ }}

