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

Abstract

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.

arXiv comment21 pages, 11 figures, 2 tables Reason for replacement: minor corrections, typos and 1 changed reference

References in corpus (7)

• A New Method for Combining NLO QCD with Shower Monte Carlo Algorithms
• Matching NLO QCD computations and parton shower simulations
• Matching NLO QCD and parton showers in heavy flavour production
• New formalism for QCD parton showers
• A Positive-Weight Next-to-Leading-Order Monte Carlo for Z Pair Hadroproduction
• Herwig++ 1.0: An Event Generator for e+e- Annihilation
• Fragmentation and Hadronization

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