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27 lines
1.1 KiB
27 lines
1.1 KiB
\documentclass{article}
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\usepackage[paperheight=60mm,paperwidth=95mm, margin=5mm]{geometry}
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\usepackage{feynmp-auto}
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\addtolength{\oddsidemargin}{-10mm}
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\addtolength{\evensidemargin}{-10mm}
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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}{Kaon_penguin2_diagram} \centering
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\begin{fmfgraph*}(300,130)
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\fmfleft{i1,i2}
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\fmfright{o1,o2}
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\fmf{fermion,label=$d$}{i2,w2}
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\fmf{fermion,label=$u\comma c$,tension=-0.5}{w2,w1}
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\fmf{fermion,label=$\bar{s}$}{w1,i1}
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\fmf{photon,label=$W^+$}{w2,z1}
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\fmf{photon,label=$W^-$,label.side=left}{z1,w1}
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\fmf{photon,label=$Z^0$,tension=1.5}{z1,z2}
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\fmf{fermion,label=$\mu^+$,label.side=right}{o1,z2}
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\fmf{fermion,label=$\mu^-$}{z2,o2}
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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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