Matching matrix elements and parton showers with HERWIG and PYTHIA

  title={Matching matrix elements and parton showers with HERWIG and PYTHIA},
  author={Stephen Mrenna},
We report on our exploration of matching matrix element calculations with the parton-shower models contained in the event generators HERWIG and PYTHIA. We describe results for e+e− collisions and for the hadroproduction of W bosons and DrellYan pairs. We compare methods based on (1) a strict implementation of ideas proposed by Catani et al., (2) a generalization based on using the internal Sudakov form factors of HERWIG and PYTHIA, and (3) a simpler proposal of M. Mangano. Where appropriate, we… CONTINUE READING
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