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Top quark mass effects in diphoton production at NNLO in QCD

Matteo Becchetti (University of Bologna)

Tuesday, 12 December 2023 at 11:15


I will consider diphoton production in hadronic collisions at the next-to-next-to-leading order (NNLO) in perturbative QCD, taking into account the full top quark mass effects up to two loops. The analysis make use of the recently computed two-loop massive amplitudes for diphoton production in the quark annihilation channel, for which I will discuss also some analytic properties. The analysis includes additional massive contributions at NNLO. I will comment on the weight of the different types of contributions to the full result for different kinematic regions.

Slides (PDF, 14 MB)