Vector-boson fusion processes constitute an important class of reactions at hadron colliders, both for signals and backgrounds of new physics in the electroweak interactions. We consider what is commonly referred to as W <sup>+</sup>W<sup>-</sup> production via vector-boson fusion (with subsequent leptonic decay of the Ws), or, more precisely, e<sup>+</sup>ν<sub>e</sub>μ <sup>-</sup><sub>μ</sub> + 2 jets production in proton-proton scattering, with all resonant and non-resonant Feynman diagrams and spin correlations of the final-state leptons included, in the phase-space regions which are dominated by t-channel electroweak-boson exchange. We compute the next-to-leading order QCD corrections to this process, at order α<sup>6</sup>α<sub>s</sub>. The QCD corrections are modest, changing total cross sections by less than 10%. Remaining scale uncertainties are below 2%. A fully-flexible next-to-leading order partonic Monte Carlo program allows to demonstrate these features for cross sections within typical vector-boson-fusion acceptance cuts. Modest corrections are also found for distributions. © SISSA 2006.

Jager, B., Oleari, C., Zeppenfeld, D. (2006). Next-to-leading order QCD corrections to W+W- production via vector-boson fusion. JOURNAL OF HIGH ENERGY PHYSICS, 2006(7) [10.1088/1126-6708/2006/07/015].

Next-to-leading order QCD corrections to W+W- production via vector-boson fusion

OLEARI, CARLO;
2006

Abstract

Vector-boson fusion processes constitute an important class of reactions at hadron colliders, both for signals and backgrounds of new physics in the electroweak interactions. We consider what is commonly referred to as W +W- production via vector-boson fusion (with subsequent leptonic decay of the Ws), or, more precisely, e+νeμ -μ + 2 jets production in proton-proton scattering, with all resonant and non-resonant Feynman diagrams and spin correlations of the final-state leptons included, in the phase-space regions which are dominated by t-channel electroweak-boson exchange. We compute the next-to-leading order QCD corrections to this process, at order α6αs. The QCD corrections are modest, changing total cross sections by less than 10%. Remaining scale uncertainties are below 2%. A fully-flexible next-to-leading order partonic Monte Carlo program allows to demonstrate these features for cross sections within typical vector-boson-fusion acceptance cuts. Modest corrections are also found for distributions. © SISSA 2006.
Articolo in rivista - Articolo scientifico
NLO calculations, QCD, Physics Collider
English
2006
2006
7
015
none
Jager, B., Oleari, C., Zeppenfeld, D. (2006). Next-to-leading order QCD corrections to W+W- production via vector-boson fusion. JOURNAL OF HIGH ENERGY PHYSICS, 2006(7) [10.1088/1126-6708/2006/07/015].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/3335
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