Extending CKKW-merging to One-Loop Matrix Elements
By N. Lavesson, L. Lonnblad. 2008
284 citations recorded by the source corpus.
We extend earlier schemes for merging tree-level matrix elements with parton showers to include also merging with one-loop matrix elements. In this paper we make a first study on how to include one-loop corrections, not only for events with a given jet multiplicity, but simultaneously for several different jet multiplicities. Results are presented for the simplest non-trivial case of hadronic events at LEP as a proof-of-concept.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/8656b2e87f4b3c1a6d6adb9a6863bafa1a98eac4
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In Nuclear and High Energy Physics
- Atlas Collaboration
- Cms Collaboration
- M. Schönherr
- S. Höche
- F. Krauss
- Fabio Maltoni
- F. Siegert
- R. Frederix
Citations in the corpus
- QCD matrix elements and truncated showers (2009, background): “Recently, first steps towards a merging at NLO precision of the matrix elements in this approach have been presented in [14].”
- Merging H/W/Z + 0 and 1 jet at NLO with no merging scale: a path to parton shower + NNLO matching (2012, background): “Several collaborations have addressed this merging problem [6, 7, 8, 9, 10, 11, 12, 13].”
- Coherent parton showers with local recoils (2009, background): “o–called truncated showers that were introduced earlier in the context of matching with next–to–leading order (NLO) matrix elements [33]. Merging with NLO matrix elements has been recently studied in [34]. First attempts to match parton showers and matrix elements at NLO have been made in a phase sp”
- Event generation with Sherpa 2.2 (2019, background): “Other formulations and approximations thereof have been presented in [134, 135, 136, 137].”
- The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations (2014, background): “NLO (and beyond) mergings are thus inherently more complicated than LO ones, because LO-matching is basically trivial; they have attracted a significant amount of attention lately [184,191,198–207].”
- NLO QCD matrix elements + parton showers in e+e− → hadrons (2012, methodology): “An algorithm with the same goals and a similar setup for the parton shower has been detailed, also for e+e−-annihilations into hadrons, in [17].”