Next-to-Leading Order Predictions for W + 3-Jet Distributions at Hadron Colliders

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We present next-to-leading order QCD predictions for a variety of distributions in W + 3-jet production at both the Tevatron and the Large Hadron Collider. We include all subprocesses and incorporate the decay of the W boson into leptons. Our results are in excellent agreement with existing Tevatron data and provide the first quantitatively precise next-to-leading order predictions for the LHC. We include all terms in an expansion in the number of colors, confirming that the specific leading-color approximation used in our previous study is accurate to within three percent. The dependence of the cross section on renormalization and factorization ... continued below

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64 pages

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Berger, C.F.; /MIT, LNS; Bern, Z.; /UCLA; Dixon, L.J.; /SLAC et al. December 9, 2009.

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We present next-to-leading order QCD predictions for a variety of distributions in W + 3-jet production at both the Tevatron and the Large Hadron Collider. We include all subprocesses and incorporate the decay of the W boson into leptons. Our results are in excellent agreement with existing Tevatron data and provide the first quantitatively precise next-to-leading order predictions for the LHC. We include all terms in an expansion in the number of colors, confirming that the specific leading-color approximation used in our previous study is accurate to within three percent. The dependence of the cross section on renormalization and factorization scales is reduced significantly with respect to a leading-order calculation. We study different dynamical scale choices, and find that the total transverse energy is significantly better than choices used in previous phenomenological studies. We compute the one-loop matrix elements using on-shell methods, as numerically implemented in the BlackHat code. The remaining parts of the calculation, including generation of the real-emission contributions and integration over phase space, are handled by the SHERPA package.

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64 pages

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  • Journal Name: Phys.Rev.D80:074036,2009; Journal Volume: 80

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  • Report No.: SLAC-PUB-13680
  • Grant Number: AC02-76SF00515
  • DOI: 10.1103/PhysRevD.80.074036 | External Link
  • Office of Scientific & Technical Information Report Number: 969277
  • Archival Resource Key: ark:/67531/metadc928528

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Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • December 9, 2009

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  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 15, 2016, 3:39 p.m.

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Berger, C.F.; /MIT, LNS; Bern, Z.; /UCLA; Dixon, L.J.; /SLAC et al. Next-to-Leading Order Predictions for W + 3-Jet Distributions at Hadron Colliders, article, December 9, 2009; United States. (digital.library.unt.edu/ark:/67531/metadc928528/: accessed April 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.