The two-loop QCD amplitude gg -> h,H in the Minimal Supersymmetric Standard Model

dc.creatorAnastasiou, Charalampos
dc.creatorBeerli, Stefan
dc.creatorDaleo, Alejandro
dc.date2008-03-21
dc.date.accessioned2026-07-07T11:33:17Z
dc.date.available2026-07-07T11:33:17Z
dc.descriptionWe present the two-loop QCD amplitude for the interaction of two gluons and a CP-even Higgs boson in the Minimal Supersymmetric Standard Model. We apply a novel numerical method for the evaluation of Feynman diagrams with infrared, ultraviolet and threshold singularities. We discuss subtleties in the ultraviolet renormalization of the amplitude with conventional dimensional regularization, dimensional reduction, and the four dimensional helicity scheme. Finally, we show numerical results for scenarios of supersymmetry breaking with a rather challenging phenomenology in which the Higgs signal in the MSSM is suppressed in comparison to the Standard Model.
dc.description5 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/0803.3065
dc.identifierhttp://arxiv.org/abs/0803.3065
dc.identifierPhys.Rev.Lett.100:241806,2008
dc.identifierdoi:10.1103/PhysRevLett.100.241806
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/197838
dc.subjectHigh Energy Physics - Phenomenology
dc.titleThe two-loop QCD amplitude gg -> h,H in the Minimal Supersymmetric Standard Model
dc.typetext

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