49 lines
2.1 KiB
TeX
49 lines
2.1 KiB
TeX
\documentclass{article}
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\usepackage[paperheight=110mm,paperwidth=125mm, margin=15mm]{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}{BuToKstJpsi_diagram} \centering
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\begin{fmfgraph*}(280,220)
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\fmfstraight
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\fmfleft{l6,l5,l4,l3,l2,l1,l0}
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\fmfright{r6,r5,r4,r3,r2,r1,r0}
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\fmf{phantom}{l2,c1,c2,c3,c4,c5,c6,c7,r2}
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\fmf{phantom}{l4,e1,e2,e3,e4,e5,e6,e7,r4}
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\fmffreeze
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%Make the spectator quark
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\fmf{fermion,label=$u$,tension=1.0, label.side=left}{l6,r6}
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%Make b to c
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\fmf{fermion,label=$\bar{b}$,tension=1.0,label.side=left}{c4,l2}
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\fmf{fermion,label=$\bar{c}$,tension=1.0,label.side=left}{r0,c4}
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%Make the blobs
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\fmf{plain,right=-0.3,tension=-0.5,label=$B^+$, label.side=right,label.dist=5.4}{l2,l6}
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\fmf{plain,right=0.3,tension=-0.5}{l2,l6}
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\fmf{plain,right=-0.4,tension=-0.5,label=$K^*$, label.side=right,label.dist=2.2}{r4,r6}
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\fmf{plain,right=0.4,tension=-0.5}{r4,r6}
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\fmf{plain,right=-0.5,tension=-0.5,label=$J/\psi$, label.side=right,label.dist=2.2}{r0,r2}
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\fmf{plain,right=0.5,tension=-0.5}{r0,r2}
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%Make W
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\fmf{photon,label=$W^+$, label.side=right}{c4,e5}
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%Make b to c
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\fmf{fermion,label=$c$,tension=1.0,label.side=left}{e5,r2}
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\fmf{fermion,label=$\bar{s}$,tension=1.0,label.side=left}{r4,e5}
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\end{fmfgraph*}
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\end{fmffile}
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\pagestyle{empty}
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\end{document} |