Next-to-leading order QCD corrections to t-tbar-Z production at the LHC

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dc.creatorLazopoulos, Achilleas
dc.creatorMcElmurry, Thomas
dc.creatorMelnikov, Kirill
dc.creatorPetriello, Frank
dc.date2008-04-14
dc.date2008-04-23
dc.date.accessioned2026-07-07T11:49:50Z
dc.date.available2026-07-07T11:49:50Z
dc.descriptionWe present a calculation of the full next-to-leading order QCD corrections to the scattering process pp \to t tbar Z. This channel will be used to measure the t tbar Z electroweak couplings at the Large Hadron Collider. These couplings cannot be directly measured in current experiments. To obtain these results, we utilize a novel, completely numerical approach to performing higher order QCD calculations. We find that for reasonable values of the renormalization and factorization scales the QCD corrections increase the leading order result by 35 percent, while reducing the theoretical error arising from uncalculated higher order corrections to approximately 10 percent.
dc.description4 pages, revtex, additional references, minor rewording
dc.identifierhttps://arxiv.org/abs/0804.2220
dc.identifierhttp://arxiv.org/abs/0804.2220
dc.identifierPhys.Lett.B666:62-65,2008
dc.identifierdoi:10.1016/j.physletb.2008.06.073
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/203376
dc.subjectHigh Energy Physics - Phenomenology
dc.titleNext-to-leading order QCD corrections to t-tbar-Z production at the LHC
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