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30 lines
1.0 KiB
30 lines
1.0 KiB
\documentclass{article}
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\usepackage[paperheight=50mm,paperwidth=95mm, margin=5mm]{geometry}
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\usepackage{feynmp-auto}
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% commas in feynmp sometimes lead to strange errors, use \comma instead
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\DeclareMathSymbol{\comma}{\mathpunct}{letters}{"3B}
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\begin{document}\LARGE
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\centering
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\begin{fmffile}{bsll_leptoquark_diagram} \centering
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\begin{fmfgraph*}(250,100)
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\fmfstraight
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\fmfleft{l1,l2}
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\fmfright{r1,r2}
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\fmf{phantom}{l1,p1,r1}
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\fmf{phantom}{l2,m1,m2,m3,r2}
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\fmffreeze
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\fmf{fermion,label=$b$,tension=1.0}{l2,m1}
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\fmf{photon,label=$\phi$,tension=1}{m1,m3}
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\fmf{fermion,label=$s$,tension=1.0}{m3,r2}
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\fmf{fermion,label=$\l^-$, label.side=right}{m1,p1}
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\fmf{fermion,label=$\l^+$}{r1,m3}
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\end{fmfgraph*}
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\end{fmffile}
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\pagestyle{empty}
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\end{document}
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