We study three and four jet production in hadronic collisions at next-to-leading order accuracy in massless QCD. We cross check results previously obtained by the BlackHat Collaboration for the LHC with a centre-of-mass energy of s=7 TeV and present new results for the LHC operating at 8 TeV. We find large negative NLO corrections reducing the leading order cross sections by about 40-50%. Furthermore we observe an important reduction of the scale uncertainty. In addition to the cross sections we also present results for differential distributions. The dynamical renormalization/factorization scale used in the calculation leads to a remarkably stable K-factor. The results presented here were obtained with the NJet package (Badger et al., 2012) [1], a publicly available library for the evaluation of one-loop amplitudes in massless QCD. © 2012 Elsevier B.V.

NLO QCD corrections to multi-jet production at the LHC with a centre-of-mass energy of s=8TeV

Badger S.;
2013-01-01

Abstract

We study three and four jet production in hadronic collisions at next-to-leading order accuracy in massless QCD. We cross check results previously obtained by the BlackHat Collaboration for the LHC with a centre-of-mass energy of s=7 TeV and present new results for the LHC operating at 8 TeV. We find large negative NLO corrections reducing the leading order cross sections by about 40-50%. Furthermore we observe an important reduction of the scale uncertainty. In addition to the cross sections we also present results for differential distributions. The dynamical renormalization/factorization scale used in the calculation leads to a remarkably stable K-factor. The results presented here were obtained with the NJet package (Badger et al., 2012) [1], a publicly available library for the evaluation of one-loop amplitudes in massless QCD. © 2012 Elsevier B.V.
2013
718
3
965
978
Hadronic collisions; Jet physics; Massless QCD; Next-to-leading order corrections; Unitarity method
Badger S.; Biedermann B.; Uwer P.; Yundin V.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1972075
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