Simulated NNLO for high-pT observables in vector boson + jets production at the LHC
arXiv:1307.2252 · doi:10.1140/epjc/s10052-013-2663-8
Abstract
We present a study of higher order QCD corrections beyond NLO to processes with an electroweak vector boson, W or Z, in association with jets. We focus on the regions of high transverse momenta of commonly used differential distributions. We employ the LoopSim method to merge NLO samples of different multiplicity obtained from MCFM and from BLACKHAT+SHERPA in order to compute the dominant part of the NNLO corrections for high-pT observables. We find that these corrections are indeed substantial for a number of experimentally relevant observables. For other observables, they lead to significant reduction of scale uncertainties.
16 pages, 8 figures; v2: expanded discussion in a few places, added and corrected references, version accepted by Eur. Phys. J. C
References in corpus (12)
- PYTHIA 6.4 Physics and Manual
- Parton distributions for the LHC
- Event generation with SHERPA 1.1
- A standard format for Les Houches Event Files
- An Automated Implementation of On-Shell Methods for One-Loop Amplitudes
- Precise Predictions for W + 4 Jet Production at the Large Hadron Collider
- Automating dipole subtraction for QCD NLO calculations
- W+3 jet production at the Tevatron
- Measurement of the production cross section of jets in association with a Z boson in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector
- Ntuples for NLO Events at Hadron Colliders
- The SM and NLO Multileg and SM MC Working Groups: Summary Report
- W/Z+Jets and W/Z+HF Production at the Tevatron
Cited by in corpus (6)
- Differential cross section measurements for the production of a W boson in association with jets in proton-proton collisions at sqrt(s) = 7 TeV
- Measurements of differential cross sections for associated production of a W boson and jets in proton-proton collisions at sqrt(s) = 8 TeV
- QCD and Jets at Hadron Colliders
- Vector Bosons and Jets in Proton Collisions
- ZZ production at high transverse momenta beyond NLO QCD
- High multiplicity processes with BlackHat and Sherpa