Heavy quark pair production in gluon fusion at next-to-next-to-leading ${\cal O}(α_s^4)$ order: One-loop squared contributions

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dc.creatorKniehl, B.
dc.creatorKörner, J. G.
dc.creatorMerebashvili, Z.
dc.creatorRogal, M.
dc.date2008-09-23
dc.date2008-11-19
dc.date.accessioned2026-07-07T12:15:43Z
dc.date.available2026-07-07T12:15:43Z
dc.descriptionWe calculate the next-to-next-to-leading order ${\cal O}(α_s^4)$ one-loop squared corrections to the production of heavy-quark pairs in the gluon-gluon fusion process. Together with the previously derived results on the $q \bar{q}$ production channel the results of this paper complete the calculation of the one-loop squared contributions of the next-to-next-to-leading order ${\cal O}(α_s^4)$ radiative QCD corrections to the hadroproduction of heavy flavors. Our results, with the full mass dependence retained, are presented in a closed and very compact form, in dimensional regularization.
dc.description16 pages, 4 figures, 4 electronic files, one reference added, matches published version
dc.identifierhttps://arxiv.org/abs/0809.3980
dc.identifierhttp://arxiv.org/abs/0809.3980
dc.identifierPhys.Rev.D78:094013,2008
dc.identifierdoi:10.1103/PhysRevD.78.094013
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/211571
dc.subjectHigh Energy Physics - Phenomenology
dc.titleHeavy quark pair production in gluon fusion at next-to-next-to-leading ${\cal O}(α_s^4)$ order: One-loop squared contributions
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