\documentclass[a4,portrait]{seminar}
\usepackage{amssymb,colordvi,german,epsfig,pstricks,fancybox,semcolor}
%\usepackage{amssymb,german,epsfig,pstricks,fancybox}
%\usepackage[dvips]{pstcol}
\usepackage{pst-coil}
\usepackage{graphicx}

%\setlength{\slidewidth}{26cm}
%\setlength{\slideheight}{17cm}
\renewcommand{\slideleftmargin}{-2.5cm}
%\renewcommand{\slidetopmargin}{1cm}

%\definecolor{orange}{rgb}{1.0,0.55,0.25}
\newhsbcolor{myred}{0 0.8 0.9}
\newhsbcolor{myblue}{0.654 0.8 0.8}
\newhsbcolor{myorange}{0.083 0.4 1}
\newhsbcolor{mygreen}{0.32 0.8 0.6}
%\newhsbcolor{mylila}{0 0.5 0.8 0.9}

\begin{document}
\pagestyle{empty}

\slideframe{none}

\begin{slide*}      % slide* waehlt portrait format/slide waehlt landscape

\unitlength1cm
\begin{picture}(7,3.4)\thicklines \boldmath
\put(1.5,3){\psline[linewidth=0.8pt]{<-}(-1,0.4)}
\put(2,2.8){\psline[linewidth=0.8pt](-0.5,0.2)}
\put(2,2.8){\psline[linewidth=0.8pt]{->}(0.7,0.3)}
\put(2.7,3.1){\psline[linewidth=0.8pt](0.7,0.3)}
\multiput(1,3.3)(1.8,0){2}{$\scriptstyle e^-$}
\put(3.2,2.44){\rput{163}{%
 \psCoil[linecolor=red,coilaspect=0,coilheight=3.5,coilwidth=0.09,
  linewidth=1pt]{0}{1380}
 \rput{*0}{}}}
\put(2.25,2.3){\green$\scriptstyle Q^2$}
\put(3.19,2.45){\psline[linecolor=red,linewidth=0.8pt](1.5,0)}
\put(4.9,2.4){\red$\scriptstyle q$}
\put(3.85,2.4){\red $\scriptscriptstyle >$}
\put(3.19,2.45){\psline[linecolor=red,linewidth=0.8pt](0,-0.9)}
\put(3.075,1.9){\red $\scriptstyle\wedge$}
\put(3.19,1.55){\psline[linecolor=red,linewidth=0.8pt](1.5,0)}
\put(4.9,1.5){\red$\scriptstyle \bar q$}
\put(5.8,2){\footnotesize {\blue direct} process}
\put(6.3,1.6){$\scriptstyle x_\gamma~ \to~ 1$}
\put(3.85,1.5){\red $\scriptscriptstyle <$}
\put(2.8,0.69){\pscoil
 [linecolor=green,coilarm=0.075cm,coilwidth=0.25cm](0.4,0.85)}
\put(2.775,0.575){\psellipse*[linewidth=1pt](0.25,0.1)}
\put(1.52,0.575){\psline[linewidth=0.8pt]{->}(1,0)}
\put(1.9,0.3){$\scriptstyle p$}
\put(3,0.6){\psline[linewidth=0.6pt](1.2,0.1)}
\put(3,0.56){\psline[linewidth=0.6pt](1.3,0)}
\put(3,0.525){\psline[linewidth=0.6pt](1.3,-0.1)}
\end{picture}



\end{slide*}
\end{document}







