Simulated NNLO for high-pTp_T observables in vector boson + jets production at the LHC

Jul 8, 2013
16 pages
Published in:
  • Eur.Phys.J.C 73 (2013) 12, 2663
  • Published: Dec 6, 2013
e-Print:
Report number:
  • IPPP-13-49,
  • DCPT-13-98

Citations per year

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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.
Note:
  • 16 pages, 8 figures; v2: expanded discussion in a few places, added and corrected references, version accepted by Eur. Phys. J. C
  • quantum chromodynamics: correction
  • transverse momentum: high
  • jet: associated production
  • vector boson: hadroproduction
  • CERN LHC Coll
  • multiplicity
  • higher-order: 2
  • W
  • Z0
  • differential cross section
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