Abstract
A detailed study of event-by-event maximum pseudo-rapidity gap fluctuations in relativistic heavy-ion collisions in terms of the scaled variance ω has been carried out for 16O-AgBr, 28Si-AgBr and 32S-AgBr interactions at an incident momentum of 4.5 AGeV/c applying the multiplicity cut (Ns > 10). For all the interactions the values of scaled variance are found to be greater than zero indicating the presence of strong fluctuation of maximum pseudo-rapidity gap values in the multiparticle production process. The event-by-event fluctuations are found to decrease with the increase of average multiplicity of the interactions. Experimental analysis has been compared with the results obtained from the analysis of events simulated by the Ultra Relativistic Quantum Molecular Dynamics (UrQMD) model. The UrQMD-model–simulated values of event-by-event fluctuations of the maximum pseudo-rapidity gap are less than the corresponding experimental values.
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