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Photo of Rikkert Frederix

Rikkert Frederix

Senior lecturer

Photo of Rikkert Frederix

Merging meets matching in MC@NLO

Author

  • Rikkert Frederix
  • Stefano Frixione

Summary, in English

The next-to-leading order accuracy for MC@NLO results exclusive in J light jets is achieved if the computation is based on matrix elements that feature J and J + 1 QCD partons. The simultaneous prediction of observables which are exclusive in different light-jet multiplicities cannot simply be obtained by summing the above results over the relevant range in J; rather, a suitable merging procedure must be defined. We address the problem of such a merging, and propose a solution that can be easily incorporated into existing MC@NLO implementations. We use the automated aMC@NLO framework to illustrate how the method works in practice, by considering the production at the 8 TeV LHC of a Standard Model Higgs in association with up to J = 2 jets, and of an e + νe pair or a tt̄ pair in association with up to J = 1 jet.

Publishing year

2012-12

Language

English

Publication/Series

Journal of High Energy Physics

Volume

2012

Issue

12

Document type

Journal article

Publisher

Springer

Topic

  • Subatomic Physics
  • Computational Mathematics

Keywords

  • Monte Carlo Simulations
  • NLO Computations

Status

Published

ISBN/ISSN/Other

  • ISSN: 1029-8479