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SUMMARY:HEP Colloquia 2025
DTSTART:20251204T130000Z
DTEND:20251204T143000Z
DTSTAMP:20260509T130200Z
UID:indico-event-49448@agenda.infn.it
CONTACT:hepcolloquia@ca.infn.it
DESCRIPTION:Speakers: Lorenzo Rossi\n\nExtraction of 𝛼s and non-perturb
 ative effects from Energy-Energy Correlator data \nThe study of hadronic 
 final states in high-energy collisions offers a powerful framework to test
  Quantum Chromodynamics with high precision\, and in recent years the Ener
 gy–Energy Correlation (EEC) in electron–positron annihilation has emer
 ged as a particularly insightful observable.  In this talk\, I will focus
  on the back-to-back region\, where we perform an all-order resummation of
  logarithmically enhanced contributions in QCD perturbation theory\, reach
 ing next-to-next-to-next-to-leading logarithmic (N3LL) accuracy. Away from
  the back-to-back limit\, we consistently match the resummed predictions t
 o the fixed-order results up to next-to-next-to-leading order (NNLO). By e
 mploying these theoretical tools\, we extract the strong coupling and quan
 tify nonperturbative effects\, such as the Collins–Soper kernel\, throug
 h a global analysis of all available datasets.\n \n\nhttps://agenda.infn.
 it/event/49448/
LOCATION:Sala Consiliare (Department of Physics)
URL:https://agenda.infn.it/event/49448/
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