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arXiv · 1102.5267

Off-shell effects for t-channel and s-channel single-top production at NLO in QCD

P. Falgari·F. Giannuzzi·P. Mellor·A. Signer
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Abstract

In this work we present a calculation of both t-channel and s-channel single-top production at next-to-leading order in QCD for the Tevatron and for the LHC at a centre-of-mass energy of 7 TeV. All the cross sections and kinematical distributions presented include leading non-factorizable corrections arising from interferences of the production and decay subprocesses, extending previous results beyond the narrow-width approximation. The new off-shell effects are found to be generally small, but can be sizeable close to kinematical end-points and for specific distributions.

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P. Falgari, F. Giannuzzi, P. Mellor, A. Signer. 2011-02-25. Off-shell effects for t-channel and s-channel single-top production at NLO in QCD. https://doi.org/10.1103/physrevd.83.094013

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