Next-to-Leading Order Predictions for W + 3-Jet Distributions at Hadron Colliders
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.
- Research Organization:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC02-76SF00515
- OSTI ID:
- 969277
- Report Number(s):
- SLAC-PUB-13680; PRVDAQ; arXiv:0907.1984; TRN: US1000241
- Journal Information:
- Phys.Rev.D80:074036,2009, Vol. 80; ISSN 1550-7998
- Country of Publication:
- United States
- Language:
- English
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Precise Predictions for W + 3 Jet Production at Hadron Colliders
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