Multiplicity distributions and charged neutral fluctuations

2001
Results from the multiplicitydistributions of inclusive photons and charged particles, scaling of particle multiplicities, event-by-event multiplicityfluctuations, and charged-neutral fluctuations in 158A GeV Pb+Pb collisions are presented and discussed. A scaling of charged particle multiplicityas N-part(1.07 +/-0.05) and photons as N-part(1.12 +/-0.03) have been observed, indicating violation of naive wounded nucleon model. The analysis of localized charged-neutral fluctuation indicates a model-independent demonstration of non- statistical fluctuationsin both charged particlesand photons in limited azimuthal regions. However, no correlated charged-neutral fluctuations are observed.
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