Weak corrections to gluon-induced top-antitop hadro-production

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dc.creatorMoretti, S.
dc.creatorNolten, M. R.
dc.creatorRoss, D. A.
dc.date2006-03-10
dc.date2007-11-08
dc.date.accessioned2026-07-07T11:26:54Z
dc.date.available2026-07-07T11:26:54Z
dc.descriptionWe calculate purely weak virtual one-loop corrections to the production cross section of top-antitop pairs at the Large Hadron Collider via the gluon-gluon fusion subprocess. We find very small negative corrections to the total cross section, of order -0.6%, but significantly larger effects to the differential one, particularly in the transverse momentum distribution, of order -5% to -10% (in observable regions). In case of parity-conserving spin-asymmetries of the final state, $α_{\mathrm{S}}^2α_{\mathrm{W}}$ corrections are typically of a few negative percent, with the exception of positive and negative peaks at $+12%$ and -5%, respectively (near where the tree-level predictions change sign), while those arising in parity-violating asymmetries (which are identically zero in QCD) are typically at a level of a few permille.
dc.description12 pages, 4 figures, LaTeX, one figure corrected, some text changes, conclusions unchanged, version to appear in PLB, Erratum added
dc.identifierhttps://arxiv.org/abs/hep-ph/0603083
dc.identifierhttp://arxiv.org/abs/hep-ph/0603083
dc.identifierPhys.Lett.B639:513-519,2006; Erratum-ibid.B660:607-609,2008
dc.identifierdoi:10.1016/j.physletb.2006.06.078 10.1016/j.physletb.2007.10.039
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/195982
dc.subjectHigh Energy Physics - Phenomenology
dc.titleWeak corrections to gluon-induced top-antitop hadro-production
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