Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2002-08-15
JHEP0302:027,2003
Physics
High Energy Physics
High Energy Physics - Phenomenology
11 pages, MadGraph home page at http://madgraph.physics.uiuc.edu
Scientific paper
10.1088/1126-6708/2003/02/027
We present a new multi-channel integration method and its implementation in the multi-purpose event generator MadEvent, which is based on MadGraph. Given a process, MadGraph automatically identifies all the relevant subprocesses, generates both the amplitudes and the mappings needed for an efficient integration over the phase space, and passes them to MadEvent. As a result, a process-specific, stand-alone code is produced that allows the user to calculate cross sections and produce unweighted events in a standard output format. Several examples are given for processes that are relevant for physics studies at present and forthcoming colliders.
Maltoni Fabio
Stelzer Tim
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