Extending CKKW-merging to One-Loop Matrix Elements
arXiv:0811.2912 · doi:10.1088/1126-6708/2008/12/070
Abstract
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.
References in corpus (24)
- PYTHIA 6.4 Physics and Manual
- PYTHIA 6.2 Physics and Manual
- A New Method for Combining NLO QCD with Shower Monte Carlo Algorithms
- Matching NLO QCD computations with Parton Shower simulations: the POWHEG method
- ALPGEN, a generator for hard multiparton processes in hadronic collisions
- Matching NLO QCD computations and parton shower simulations
- A General Algorithm for Calculating Jet Cross Sections in NLO QCD
- MadGraph/MadEvent v4: The New Web Generation
- QCD Matrix Elements + Parton Showers
- Matching matrix elements and shower evolution for top-quark production in hadronic collisions
- The Dipole Formalism for the Calculation of QCD Jet Cross Sections at Next-to-Leading Order
- Next-to-leading order calculation of three-jet observables in hadron-hadron collision
- An Automated Implementation of On-Shell Methods for One-Loop Amplitudes
- Correcting the Colour-Dipole Cascade Model with Fixed Order Matrix Elements
- Matrix Elements and Parton Showers in Hadronic Interactions
- A precise determination of alpha_s from LEP thrust data using effective field theory
- A simple shower and matching algorithm
- Matching Matrix Elements and Parton Showers with HERWIG and PYTHIA
- Parton showers with quantum interference
- W+jets Matrix Elements and the Dipole Cascade
- Merging parton showers and matrix elements -- back to basics
- Next-to-leading order QCD calculations with parton showers I: collinear singularities
- Next-to-leading order QCD jet production with parton showers and hadronization
- Next-to-leading order QCD calculations with parton showers II: soft singularities
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- The First Calculation of Fractional Jets
- A study of multi-jet production in association with an electroweak vector boson
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- A Positive-Weight Next-to-Leading-Order Monte Carlo Simulation of Deep Inelastic Scattering and Higgs Boson Production via Vector Boson Fusion in Herwig++
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