Wavelet analysis of event by event fluctuations
Abstract
The temporal fluctuations of produced hadron density in heavy ion collisions, modelled by 2D Ising model at temperatures Tc and below, are studied through a recently developed wavelet based fluctuation analysis method. At Tc, long-range correlated multifractal behavior, matching with the recently observed Hurst exponent H 1, is found. Below Tc uncorrelated monofractal behavior is seen. The correlation behavior compares well with the results obtained from continuous wavelet based average wavelet co-efficient method, as well as with Fourier power spectral analysis.
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