A Positive-Weight Next-to-Leading-Order Monte Carlo for e+e- Annihilation to Hadrons

Details A Positive-Weight Next-to-Leading-Order Monte Carlo for e+e- Annihilation to Hadrons A Positive-Weight Next-to-Leading-Order Monte Carlo for e+e- Annihilation to Hadrons

2006-12-21

arxiv.org/abs/hep-ph/0612281v2

JHEP 0702:051,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

21 pages, 11 figures, 2 tables Reason for replacement: minor corrections, typos and 1 changed reference

Scientific paper

10.1088/1126-6708/2007/02/051

We apply the positive-weight Monte Carlo method of Nason for simulating QCD processes accurate to Next-To-Leading Order to the case of e+e- annihilation to hadrons. The method entails the generation of the hardest gluon emission first and then subsequently adding a `truncated' shower before the emission. We have interfaced our result to the Herwig++ shower Monte Carlo program and obtained better results than those obtained with Herwig++ at leading order with a matrix element correction.

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