\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

% coordinates are in x,y

\unitlength1cm

\begin{picture}(7,3.6) \boldmath
% Drawing the incoming lepton
\put(1.5,3){\psline[linewidth=0.6pt]{<-}(-1,0.4)}
\put(2,2.8){\psline[linewidth=0.6pt](-0.5,0.2)}
% Drawing the outcoming lepton
\put(2,2.8){\psline[linewidth=0.6pt]{->}(0.7,0.3)}
\put(2.7,3.1){\psline[linewidth=0.6pt](0.7,0.3)}
% Drawing the gluon
\put(1.9,2.8){\rput{270}{%
\psCoil[linecolor=black,coilarm=0.075cm,coilwidth=0.25cm]{0}{1440}}}
\put(1.9,2.1){\rput{270}{%
\psCoil[linecolor=black,coilarm=0.075cm,coilwidth=0.25cm]{0}{1440}}}
% Drawing the incoming lepton
\put(1.5,1.2){\psline[linewidth=0.6pt]{<-}(-1,-0.4)}
\put(2,1.4){\psline[linewidth=0.6pt](-0.5,-0.2)}
\put(2,1.4){\psline[linewidth=0.6pt]{->}(0.7,-0.3)}
\put(2.7,1.1){\psline[linewidth=0.6pt](0.7,-0.3)}
\end{picture} 


\begin{picture}(7,3.6) \boldmath
% Drawing the incoming lepton
\put(1.5,3){\psline[linewidth=0.6pt]{<-}(-1,0.4)}
\put(2,2.8){\psline[linewidth=0.6pt](-0.5,0.2)}
% Drawing the outcoming lepton
\put(2,2.8){\psline[linewidth=0.6pt]{->}(0.7,0.3)}
\put(2.7,3.1){\psline[linewidth=0.6pt](0.7,0.3)}
% Drawing the gluon

\put(1.9,2.8){\rput{270}{%
\psCoil[linecolor=black,coilarm=0.075cm,coilwidth=0.25cm]{0}{1550}}}


\end{picture} 



\end{slide*}
\end{document}







