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SUMMARY:Hunting QGP across system-size landscape: Jet quenching in O+O wit
 h sPHENIX
DTSTART:20260804T150000Z
DTEND:20260804T170000Z
DTSTAMP:20260823T201800Z
UID:indico-event-33603@indico.bnl.gov
DESCRIPTION:Speakers: Jaebeom Park\n\nJet quenching\, the suppression and 
 modification of high-energy jets traversing the quark-gluon plasma (QGP)\,
  is a defining signature of heavy-ion collisions. Whether this phenomenon 
 survives in small collision systems remains one of the central open questi
 ons in the field. Oxygen collisions provide a decisive test ground\, filli
 ng the gap in system size between p+p and heavy-ion collisions with a cont
 rolled collision geometry.\nIn this talk\, I present the first measurement
 s of jet production in O+O collisions at $\\sqrt{s_{NN}}$ = 200 GeV with t
 he sPHENIX detector. Using high-statistics data\, we report for the first 
 time the nuclear modification factor $R_{\\rm AA}$ and the central-to-peri
 pheral ratio $R_{\\rm CP}$ for inclusive jets in O+O collisions. A clear c
 entrality hierarchy has been found on the two observables showing the jet 
 yields are suppressed towards central collisions\, a pattern consistent w
 ith final-state energy loss. I will place these results in the context of 
 energy loss\, examine the dependence on no-quenching nPDF baselines\, and 
 discuss what jet measurements across the system-size landscape can tell us
  about the minimal conditions for QGP formation.\nRecording available: Rec
 ording URL\nPasscode: 8%d+FRBH\n\nhttps://indico.bnl.gov/event/33603/
URL:https://indico.bnl.gov/event/33603/
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