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

作者：Badger Simon^*; Biedermann Benedikt; Uwer Peter; Yundin Valery

来源：Physics Letters B, 2013, 718(3): 965-978.

DOI：10.1016/j.physletb.2012.11.029

• Massless QCD
• Jet physics
• Hadronic collisions
• Unitarity method
• Next-to-leading order corrections

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 root 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 MET package (Badger et al., 2012) [1], a publicly available library for the evaluation of one-loop amplitudes in massless QCD.

• 出版日期2013-1-8