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SUMMARY:Universality of QCD scattering amplitudes at high energy
DTSTART:20260311T130000Z
DTEND:20260311T140000Z
DTSTAMP:20260510T071600Z
UID:indico-event-51064@agenda.infn.it
DESCRIPTION:Speakers: Federica Devoto (SLAC)\n\nIn this talk\, I will disc
 uss the structure of QCD scattering amplitudes in the high-energy regime\,
  known as the Regge limit. I will focus in particular on the factorization
  properties of amplitudes at next-to-next-to-leading logarithmic (NNLL) ac
 curacy. At this level\, factorization is violated by contributions associa
 ted with multi-Reggeon exchanges. We compute these terms using the shockwa
 ve formalism and the Balitsky–JIMWLK evolution equation\, and by expandi
 ng the exact two-loop five-point amplitude in the high-energy limit. From 
 this analysis\, we extract for the first time the two-loop central emissio
 n vertex in QCD\, a key ingredient for extending BFKL resummation to NNLL 
 accuracy.\n \n\nhttps://agenda.infn.it/event/51064/
LOCATION:A501 (Dip.to di Fisica Univ. Genova)
URL:https://agenda.infn.it/event/51064/
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