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SUMMARY:Two-loop QCD contribution to quark-initiated ttH production in the
  leading-colour approximation
DTSTART:20261104T103000Z
DTEND:20261104T113000Z
DTSTAMP:20261028T144700Z
UID:indico-event-18972@indico.global
DESCRIPTION:The production of a top–antitop quark pair in association wi
 th a Higgs boson (ttH) is a crucial process at the Large Hadron Collider (
 LHC)\, as it provides a direct probe of the top-quark Yukawa coupling. Pre
 vious phenomenological predictions for this process have relied on dynamic
 al approximations to the two-loop virtual corrections\, which had not been
  computed directly. In this talk\, I will present the first direct computa
 tion of the two-loop QCD virtual corrections to the quark-initiated channe
 l of ttH production in the generalised leading-colour approximation. I wil
 l discuss the numerical methods and machine learning techniques employed t
 o construct a surrogate amplitude for accurate cross-section predictions\,
  and compare our results with previous predictions\, finding agreement wit
 hin the respective uncertainties.\n\nhttps://indico.global/event/18972/
LOCATION:Aula Caldirola (University of Milan Statale)
URL:https://indico.global/event/18972/
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