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SUMMARY:Higher-order strongly intensive observables for forward–backward
  multiplicity fluctuations
DTSTART;VALUE=DATE-TIME:20261028T135000Z
DTEND;VALUE=DATE-TIME:20261028T140500Z
DTSTAMP;VALUE=DATE-TIME:20261024T231049Z
UID:indico-contribution-6297@cern.ch
DESCRIPTION:Speakers: Evgeny Andronov (Saint Petersburg State University)\
 nHigher-order multiplicity fluctuations can reveal features of particle pr
 oduction that are not accessible through variances and two-particle correl
 ations alone. Their interpretation\, however\, is complicated by fluctuati
 ons in the number of particle-emitting sources. We develop a systematic co
 nstruction of strongly intensive observables that remove this dependence w
 ithin the independent-source model.\n\nStarting from the relations between
  the joint cumulants of observed multiplicities\, the emission properties 
 of a single source\, and the source-number distribution\, we construct ind
 ependent combinations at successive orders. We discuss their normalization
  relative to independent particle production\, extending the approach used
  for the second-order quantities Sigma and Delta. Particular attention is 
 paid to the fourth-order observable Upsilon and its relation to other inde
 pendent combinations at the same order. The study establishes the conditio
 ns under which source-number fluctuations cancel and explores the addition
 al information carried by higher-order strongly intensive observables.\n\n
 The authors acknowledge Saint-Petersburg State University for a research p
 roject ID: 153212394\n\nhttps://indico.particle.mephi.ru/event/626/contrib
 utions/6297/
LOCATION:Sevastopol Hotel
URL:https://indico.particle.mephi.ru/event/626/contributions/6297/
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