Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2000-06-13
Phys.Rev.C63:064904,2001
Physics
Nuclear Physics
Nuclear Theory
revised version to appear in Phys. Rev. C, 5 pages
Scientific paper
10.1103/PhysRevC.63.064904
Event-by-event fluctuations and correlations between particles produced in relativistic nuclear collisions are studied. The fluctuations in positive, negative, total and net charge are closely related through correlations. In the event of a phase transitions to a quark-gluon plasma, fluctuations in total and net charge can be enhanced and reduced respectively which, however, is very sensitive to the acceptance and centrality. If the colliding system experiences strong density fluctuations due, e.g., to droplet formation in a first-order phase transition, all fluctuations can be enhanced substantially. The importance of fluctuations and correlations is exemplified by event-by-event measurement of the multiplicities of $J/\Psi$'s and charged particles since these observables should anti-correlate in the presence of co-mover or anomalous absorption.
Heiselberg Henning
Jackson Andrew D.
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