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SUMMARY:Through the looking glass: first analyses and new techniques in

 Higgs and Top physics
DTSTART:20261029T113000Z
DTEND:20261029T133000Z
DTSTAMP:20261008T034100Z
UID:indico-event-2236@indico.lip.pt
DESCRIPTION:Speakers: Ricardo Barrué (Marietta Blau Institute for Particl
 e Physics)\n\nWith no direct signs of new physics at the LHC so far\, atte
 ntion has turned to subtle deviations in the interactions of the Higgs bos
 on and the top quark. Finding such deviations requires both new measuremen
 ts and better ways of extracting information from the data. This seminar w
 ill present the first ATLAS search for CP violation in the associated prod
 uction of a W and a Higgs boson (WH production)\, together with its combin
 ation with other ATLAS measurements of the CP properties of Higgs–vector
  boson interactions. It will then introduce neural simulation-based infere
 nce (NSBI)\, which uses machine learning to estimate per-event likelihood 
 ratios or optimal observables directly from high-dimensional event informa
 tion. A phenomenological study of NSBI applied to CP-violating and CP-cons
 erving anomalous W-Higgs couplings in WH production will be presented. Fin
 ally\, the seminar will discuss how NSBI is now being used in full experim
 ental analyses at ATLAS and CMS\, including new CMS results on NSBI techni
 ques for effective field theory measurements in the top quark sector.\n\nh
 ttps://indico.lip.pt/event/2236/
LOCATION:LIP-Lisboa/3-311 - Sala de Seminários (LIP Lisboa)
URL:https://indico.lip.pt/event/2236/
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