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SUMMARY:Activities accompanying Precision Monte Carlos: past\, today\, and
  future with FCC perspective
DTSTART:20260323T130000Z
DTEND:20260323T140000Z
DTSTAMP:20260414T040200Z
UID:indico-event-1654778@indico.cern.ch
DESCRIPTION:Speakers: Zbigniew Was (IFJ PAN Krakow)\n\nIndependently wheth
 er hadron or electron colliders detectors\, the most precisely measured ar
 e directions of muons\, followed by  directions of electrons and later le
 pton energies. That is why precision requirements are defined by: size of 
 alpha_QED necessity to define objects like intermediate bosons on one side
 \, and detector details: granularity and background subtraction requireme
 nts on the other. There can be discussed 3 levels for  ambiguities: not b
 etter than 1 %\, around 0.3 and finally better than 0.1 %. They require di
 fferent level of sophisticated\, Field theory based theoretical prediction
 s\, to complete tests of Standard Model. Agreement means confirmation and 
 discrepancy point to New Physics (or faulty calculations). As important ex
 perience I will point to  precision measurements of LEP 1 time\, where pr
 ecision of  0.043% was reached for theory experimentcomparisons. What thi
 s experience may hint for the future\, where for example\, FCC measurement
 s of 0.01 % or even better ambiguities are expected. In particular\, What
  requirements of theory predictions this will require: for Monte Carlo pro
 grams\, for prediction of idealized/optimal  observables\, possibly to be
  used in fits or in ML applications.\n\nhttps://indico.cern.ch/event/16547
 78/\n\nZoom: https://cern.zoom.us/j/62752332519?pwd=cVNpK2kySnJDOCs2cVdseX
 ZpTktTdz09
LOCATION:4/3-006 - TH Conference Room (CERN)
URL:https://indico.cern.ch/event/1654778/
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