% sm.t1 -- generated from sm.mp
\fmfL(33.33336,62.24998,b){$\Pgtm $}%
\fmfL(150.39017,92.03389,t){$\APmuon $}%
\fmfL(85.48752,81.83162,rb){$\Pphoton $}%
\fmfL(149.21071,122.51599,b){$\Pmuon $}%
\fmfL(100.00003,50.24998,t){$\PWminus $}%
\fmfL(100.00002,16.91667,t){{$\Pgngt \to \Pgngm $}}%
\fmfL(166.66669,62.24998,b){$\Pmuon $}%