Event-by-event charged-neutral fluctuations in Pb+Pb collisions at 158 A~GeV.
Journal Article
·
· Physics Letters B
OSTI ID:1050280
Charged particles and photons have been measured in central Pb + Pb collisions at 158 AGeV in a common ({eta}-{phi})-phase space region in the WA98 experiment at the CERN SPS. The measured distributions have been analyzed to quantify the frequency with which phase space regions of varying sizes have either small or large neutral pion fraction. The measured results are compared with VENUS model simulated events and with mixed events. Events with both large and small charged-neutral fluctuations are observed to occur more frequently than expected statistically, as deduced from mixed events, or as predicted by model simulations, with the difference becoming more prominent with decreasing size of the {Delta}{eta}-{Delta}{phi} region.
- Research Organization:
- Oak Ridge National Laboratory (ORNL)
- Sponsoring Organization:
- SC USDOE - Office of Science (SC)
- DOE Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1050280
- Journal Information:
- Physics Letters B, Journal Name: Physics Letters B Journal Issue: 3 Vol. 701
- Country of Publication:
- United States
- Language:
- English
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