Merging meets matching in MC@NLO
Sep, 201240 pages
Published in:
- JHEP 12 (2012) 061
e-Print:
- 1209.6215 [hep-ph]
Report number:
- CERN-PH-TH-2012-247,
- ZU-TH-21-12
Experiments:
View in:
Citations per year
Abstract: (arXiv)
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\nu_e pair or a t\bar{t} pair in association with up to J=1 jet.Note:
- 40 pages, 14 figures
- NLO
- Monte Carlo
- higher-order: 1
- top: pair production
- quantum chromodynamics: perturbation theory
- jet: multiplicity
- p p: exclusive reaction
- Higgs particle: hadroproduction
- neutrino/e: hadroproduction
- positron: hadroproduction
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Figures(56)
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