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latex:feynman:ttbar

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latex:feynman:ttbar [2023/02/05 12:12] – created iwnlatex:feynman:ttbar [2023/02/05 15:59] (current) – iwn
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 ====== Top quark pair production & decay ====== ====== Top quark pair production & decay ======
  
-Full code to produce a multipage PDF with the [[latex:feynman#top_quark_pair_production|standalone diagrams]] depicting ttbar production and decay:+Full code to produce a {{latex:feynman:ttbar.pdf|multipage PDF}} with the [[latex:feynman#top_quark_pair_production|standalone diagrams]] depicting ttbar production and decay:
  
-<code latex proton-proton_collisions_diffractive.tex>+<code latex ttbar.tex>
 % !TEX program = pdflatexmk % !TEX program = pdflatexmk
 % !TEX parameter = -shell-escape % !TEX parameter = -shell-escape
Line 24: Line 24:
     \fmfleft{i2,i1}     \fmfleft{i2,i1}
     \fmfright{o2,o1}     \fmfright{o2,o1}
 +    % main
     \fmf{fermion}{i1,v1,i2}     \fmf{fermion}{i1,v1,i2}
     \fmf{fermion}{o2,v2,o1}     \fmf{fermion}{o2,v2,o1}
     \fmf{gluon,label=$g$,label.side=right,label.dist=10}{v2,v1}     \fmf{gluon,label=$g$,label.side=right,label.dist=10}{v2,v1}
 +    % labels
     \fmflabel{$q$}{i1}     \fmflabel{$q$}{i1}
     \fmflabel{$\overline{q}$}{i2}     \fmflabel{$\overline{q}$}{i2}
Line 44: Line 46:
     \fmfright{o2,o1}     \fmfright{o2,o1}
     \fmfshift{2 left}{i1}     \fmfshift{2 left}{i1}
 +    % main
     \fmf{fermion}{o2,v2,o1}     \fmf{fermion}{o2,v2,o1}
     \fmf{gluon}{v1,i1}     \fmf{gluon}{v1,i1}
Line 57: Line 60:
     %\fmflabel{$i\sqrt{\alpha}$}{v1}     %\fmflabel{$i\sqrt{\alpha}$}{v1}
     %\fmflabel{$i\sqrt{\alpha}$}{v2}     %\fmflabel{$i\sqrt{\alpha}$}{v2}
 +  \end{fmfgraph*}
 +\end{fmffile}
 +}
 +\end{page}
 +
 +% TTBAR PRODUCTION - Gluon-gluon fusion (s-channel) 2
 +\begin{page}
 +\fmfframe(-6,15)(-6,15){ % padding (LTRB)
 +\begin{fmffile}{feynmp-ttbar-gg-t}
 +  \begin{fmfgraph*}(110,60)
 +    \fmfleft{i2,i1}
 +    \fmfright{o2,o1}
 +    % main
 +    \fmf{fermion}{o2,v2,o1}
 +    \fmf{gluon}{v1,i1}
 +    \fmf{gluon}{i2,v1}
 +    \fmf{gluon,label=$g$}{v1,v2}
 +    % labels
 +    \fmflabel{$g$}{i1}
 +    \fmflabel{$g$}{i2}
 +    \fmflabel{$\overline{\text{t}}$}{o2}
 +    \fmflabel{t}{o1}
   \end{fmfgraph*}   \end{fmfgraph*}
 \end{fmffile} \end{fmffile}
Line 67: Line 92:
 \begin{fmffile}{feynmp-ttbar-gg-s} \begin{fmffile}{feynmp-ttbar-gg-s}
   \begin{fmfgraph*}(110,60)   \begin{fmfgraph*}(110,60)
-    \fmfleft{i2,i1}  +    \fmfleft{i2,i1} 
-    \fmfright{o2,o1}  +    \fmfright{o2,o1} 
-    \fmf{gluon}{v1,i1} +    % main 
 +    \fmf{gluon}{v1,i1}
     \fmf{fermion}{v1,o1}     \fmf{fermion}{v1,o1}
     \fmf{gluon}{i2,v2}     \fmf{gluon}{i2,v2}
     \fmf{fermion}{o2,v2}     \fmf{fermion}{o2,v2}
     \fmf{fermion,label=t}{v2,v1}     \fmf{fermion,label=t}{v2,v1}
 +    % labels
     \fmflabel{$g$}{i2}     \fmflabel{$g$}{i2}
     \fmflabel{$g$}{i1}     \fmflabel{$g$}{i1}
-    \fmflabel{t}{o1} +    \fmfv{l.d=7,l.a=22,l=t}{o1} 
-    \fmflabel{$\overline{\text{t}}$}{o2}+    \fmfv{l.d=7,l.a=-20,l=$\overline{\text{t}}$}{o2}
   \end{fmfgraph*}   \end{fmfgraph*}
 \end{fmffile} \end{fmffile}
Line 107: Line 134:
     \fmflabel{$q$}{i1}     \fmflabel{$q$}{i1}
     \fmflabel{$\overline{q}$}{i2}     \fmflabel{$\overline{q}$}{i2}
 +    \fmfv{l.d=5,l.a=25,l=$g$}{t}
     \fmflabel{$\bar{\text{t}}$}{o2}     \fmflabel{$\bar{\text{t}}$}{o2}
     \fmflabel{$\text{t}$}{o1}     \fmflabel{$\text{t}$}{o1}
latex/feynman/ttbar.1675595571.txt.gz · Last modified: by iwn

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