\documentclass{scrartcl}

\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{lmodern}

\usepackage{tikz}
\usetikzlibrary{decorations.pathmorphing,decorations.markings}
\tikzset{
particle/.style={postaction={decorate}, decoration={markings,mark=at position .5 with {\arrow{latex}}}},
antiparticle/.style={postaction={decorate}, decoration={markings,mark=at position .5 with {\arrow{latex reversed}}}},
gluon/.style={decorate, decoration={coil,amplitude=4pt, segment length=5pt}}
}

\begin{document}

\begin{tikzpicture}[thick,scale=1.0]
\draw[gluon] (-1.5,1.5) -- node[below,sloped] {$g$} (0,0);
\draw[particle] (-1.5,-1.5) -- node[above,sloped] {$d_R$} (0,0);


\draw[particle,dashed] (0,0) -- node[above,sloped] {$\tilde{g}$} (2,0.5);
\draw[antiparticle,dashed] (2,0.5) -- node[below,sloped] {$\tilde{\chi}_1^+$} (4,1);
\draw[particle,dashed] (4,1) -- node[above,sloped] {$\tilde{\chi}_1^0$} (6,1.5);

\draw[particle] (2,0.5) -- (1.25,1.5);
\draw[antiparticle] (2,0.5) -- (2,1.5);
\draw[particle] (2,0.5) -- (2.75,1.5);
\draw[antiparticle] (2,0.5) -- (3.5,1.5);

\draw[particle] (4,1) -- (6.5,1);
\draw[antiparticle] (4,1) -- (7,0.5);


\draw[particle,dashed] (0,0) -- node[below,sloped] {$\tilde{d}_R$} (2,-0.5);
\draw[particle,dashed] (2,-0.5) -- node[above,sloped] {$\tilde{\chi}_2^0$} (4,-1);
\draw[particle,dashed] (4,-1) -- node[below,sloped] {$\tilde{\chi}_1^0$} (6,-1.5);

\draw[particle] (2,-0.5) -- (2.75,-1.5);
\draw[antiparticle] (2,-0.5) -- (3.5,-1.5);
\draw[particle] (2,-0.5) -- (4.25,-1.5);

\draw[particle] (4,-1) -- (6.5,-1);
\draw[antiparticle] (4,-1) -- (7,-0.5);


\fill (0,0) circle (.07cm);
\fill (2,0.5) circle (.07cm);
\fill (4,1) circle (.07cm);
\fill (2,-0.5) circle (.07cm);
\fill (4,-1) circle (.07cm);
\end{tikzpicture}

\end{document}