Friday, July 7, 2023, 12:30 pm — Small Seminar Room, Bldg. 510
Abstract: In this talk, I will discuss recent results for three-loop QCD scattering amplitudes. After a quick and gentle review of the techniques that enabled our calculations, I will illustrate their relevance both for phenomenological studies and for refining our understanding of perturbative gauge theories. Specifically, I will discuss how the three-loop gg->γγ amplitude allowed us to obtain improved theoretical predictions relevant for bounding the Higgs-boson total width through interferometry, and how the three-loop amplitudes for parton-partons scattering helped to shed some light on the structure of all-order QCD in the high-energy, or Regge, regime.
Hosted by: Konstantin Asteriadis
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