Next-to-next-to-leading order ${\cal O}(α_s^4)$ results for heavy quark pair production in quark--antiquark collisions: The one-loop squared contributions

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dc.creatorKörner, J. G.
dc.creatorMerebashvili, Z.
dc.creatorRogal, M.
dc.date2008-02-01
dc.date2008-05-19
dc.date.accessioned2026-07-07T11:55:47Z
dc.date.available2026-07-07T11:55:47Z
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 quark-antiquark annihilations. These are part of the next-to-next-to-leading order ${\cal O}(α_s^4)$ radiative QCD corrections to this process. Our results, with the full mass dependence retained, are presented in a closed and very compact form, in the dimensional regularization scheme. We have found very intriguing factorization properties for the finite part of the amplitudes.
dc.description12 pages, 2 figures, electronic results file, abbreviation NNLO in Title and Abstract expanded, Summary expanded, reference updated, version to appear in Phys.Rev.D
dc.identifierhttps://arxiv.org/abs/0802.0106
dc.identifierhttp://arxiv.org/abs/0802.0106
dc.identifierPhys.Rev.D77:094011,2008
dc.identifierdoi:10.1103/PhysRevD.77.094011
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/205360
dc.subjectHigh Energy Physics - Phenomenology
dc.titleNext-to-next-to-leading order ${\cal O}(α_s^4)$ results for heavy quark pair production in quark--antiquark collisions: The one-loop squared contributions
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