Changes between Version 2 and Version 3 of FAQ-General-6


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Timestamp:
May 2, 2012, 10:13:10 AM (13 years ago)
Author:
Martin
Comment:

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  • FAQ-General-6

    v2 v3  
    33=== How do I generate only a subset of diagrams? What are the decay chains? ===
    44
    5    * Use " x x > <span style="color: #990099;">z</span> > y y y " form to require particle <span style="color: #990099;">z</span> to appear in a s-channel intermediate state.
    6    * Use " x x > y y y / <span style="color: #990099;">z</span>" form to exclude particle <span style="color: #990099;">z</span> to appear at all in any diagram.
     5   * Use " x x > [[span( z,style=color: #990099;)]] > y y y " form to require particle [[span( z,style=color: #990099;)]] to appear in a s-channel intermediate state.
     6   * Use " x x > y y y / [[span( z,style=color: #990099;)]]" form to exclude particle [[span( z,style=color: #990099;)]] to appear at all in any diagram.
    77   * Use " x x > y y y $ z" form to forbid on-shell s-channel z particles (note that this restriction set in the MadEvent run from MG5 v. 1.3.18).
    88