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T: Fachverband Teilchenphysik

T 89: Theorie: Higgs

T 89.4: Vortrag

Donnerstag, 28. März 2019, 16:45–17:00, S16

Double Higgs boson production at NLO in the high-energy limit — Joshua Davies, Go Mishima, Matthias Steinhauser, and •David Wellmann — Karlsruher Institut für Technologie (KIT), Karlsruhe, Deutschland

Double Higgs boson production via gluon fusion is a loop-induced process. Determining the form factors at next-to-leading order requires the evaluation of massive two-loop Feynman diagrams and involves multiple scales. We tackle this problem in the high-energy limit where we obtain analytic results for both planar and non-planar master integrals and therefore also for the form factors. In this talk, the results and the kinematic region in which they are valid, are discussed and compared against numerical calculations.