To constructe Lagrangian and deduce Feynman rules

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To constructe Lagrangian and deduce Feynman rules

For the second step, the following is the list of the input and output files.

$\begin{picture}(490,290) \put(230,143){\oval(480,280)} \put(0,140){ \begin{tabul... ...odel\_generator & \\ & try, cg, re\_parameter &\\ \end{tabular}} \end{picture}$

Then the user should do the following things:

Check the file out to see if there are some thing wrong

Check the file model_state to see if there is the line

    model_generator1:=ok;
    model_generator2:=ok;

View the file feynman_rule_show to find the vertices to drop and add them to the vertices_drop_list in the file vertices_drop_list

wang jian xiong 2003-01-10