Event generator for processes used for luminosity measurement at the ZEUS experiment
Matrix elements used by generator

The matrix elements [squared/coupled to LO] are derived using the ALHEP symbolic algebra program.
The archive contains:

• Matrix elements [squared/coupled to LO] in Mathematica format ('res.nb').
  See corresponding folder for each process;
• Diagrams ('res.tex');
• ALHEP scripts ('test.al') and output files.
• Some manual manipulations on matrix elements (see sub-folder runs).
• The resulting 'c++'-files can be compared line-by-line to ones in generator to track the other (minor) changes.

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Last updated on 18.08.2010 by V.Makarenko