Event-by-Event Fluctuations of the Kaon-to-Pion Ratio in Central Pb+Pb Collisions at 158 GeV per Nucleon
Journal Article
·
· Physical Review Letters
- and others
We present the first measurement of fluctuations from event to event in the production of strange particles in collisions of heavy nuclei. The ratio of charged kaons to charged pions is determined for individual central Pb+Pb collisions. After accounting for the fluctuations due to detector resolution and finite number statistics we derive an upper limit on genuine nonstatistical fluctuations, which could be related to a first- or second-order QCD phase transition. Such fluctuations are shown to be very small.
- Sponsoring Organization:
- (US)
- OSTI ID:
- 40205698
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 10 Vol. 86; ISSN 0031-9007
- Publisher:
- The American Physical Society
- Country of Publication:
- United States
- Language:
- English
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