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SUMMARY:Search for the critical point of strongly interacting matter in th
 e NA61/SHINE experiment at CERN SPS
DTSTART:20260615T090000Z
DTEND:20260615T110000Z
DTSTAMP:20260703T101100Z
UID:indico-event-1625@indico.ifj.edu.pl
DESCRIPTION:Speakers: Nikolaos Davis (IFJ PAN)\n\nThe NA61/SHINE experimen
 t at the CERN SPS is a multipurpose fixed-target spectrometer for charged 
 and neutral hadron measurements. Its research program includes studies of 
 strong interactions as well as reference measurements for neutrino and cos
 mic-ray physics. One major goal of its strong interaction program is to de
 termine the existence and pinpoint the location of the critical point (CP)
  of strongly interacting matter. The critical point (CP) is an important h
 ypothesized feature of the phase diagram of Quantum Chromodynamics (QCD) 
 – the plot in temperature and baryon density that maps the states of str
 ongly interacting matter (nuclear matter\, hadron gas\, quark-gluon plasma
 ) and the phase transitions between them. Experimental detection of the CP
  and mapping of its exact location and characteristics is a highly sought-
 after goal of high-energy ion collision experiments in large particle acce
 lerators\, such as the SPS\; while also being the driving force behind con
 siderable theoretical and computational effort (effective models\, lattice
  QCD).\nThis presentation will summarize the current status of a diverse c
 ollection of NA61/SHINE critical point searches in nucleus-nucleus collisi
 ons\, in the collision energy range $\\sqrt{s_{NN}} = 5 - 17$ GeV. The rev
 iew includes studies of multiplicity and net-electric charge fluctuations\
 , femtoscopy analysis of $\\pi^+$ / $\\pi^-$ pairs\, as well as intermitte
 ncy analyses of protons and negatively charged hadrons probed via the scal
 ing of factorial moments of particle multiplicities at different transvers
 e momentum scales. The presentation will also touch on the recent signific
 ant methodological progress in properly handling bin-by-bin correlations 
 – a long-standing problem in experimental intermittency analysis\, parti
 cularly for datasets with a small number of events and small particle mult
 iplicity. We report on novel methods that solve the aforementioned problem
  and provide a more accurate handling of systematics and uncertainties.\n\
 nhttps://indico.ifj.edu.pl/event/1625/
URL:https://indico.ifj.edu.pl/event/1625/
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