Localized charged-neutral fluctuations inGeV Pb+Pb collisions
- 31 May 2001
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review C
- Vol. 64 (1) , 011901
- https://doi.org/10.1103/physrevc.64.011901
Abstract
Localized fluctuations in the multiplicity of charged particles and photons produced in central Pb+Pb collisions are studied. The charged versus neutral correlations in common phase space regions of varying azimuthal size are analyzed by two different methods. The analysis provides a model-independent demonstration of nonstatistical fluctuations in both charged particle and photon multiplicities in limited azimuthal regions. However, no correlated charge-neutral fluctuations are observed, contrary to expectations for the production of a disoriented chiral condensate. The result is not explained by the widely used VENUS model.
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