We use scaled factorial moments ͑SFM's͒ to analyze pseudorapidity fluctuations of nonstatistical origin in p-nucleus interactions at 800 GeV. The SFM's are found to exhibit a power-law dependence on the pseudorapidity interval size. The anomalous dimensions d q have been calculated up to order 5. The fractional dimensions D q have been extracted from the slopes of the multifractal plots. Both the multifractal and intermittency approaches have been found to be complementary to each other. The behavior of D q and d q with order q indicates a possible self-similar random cascading mechanism for multiparticle production.

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We present the experimental results on multifractal structure of medium energy particles in 800-GeV proton-AgBr interactions. We observe a power-law dependence of the multiplicity moments on mean multiplicity in varying bin widths of the angular distribution. The experimental values of generalized dimensions are determined from the slopes for two different categories of interactions in different multiplicity regions. The observed behavior of generalized dimensions Dq and of the related singularity spectrum shows a consistent departure from randomness and is a typical multifractal. The observations support a possible cascading mechanism in the emission process of target fragmented medium energy protons. The inhomogeneity of the probability distribution measured by the difference 1 -Dq decreases with increase in the average multiparticle density.PACS number(s): 13.85.Hd, 24.60.Ky, 29.40.Rg

We present the first results on correlations in multiparticle production in p-nucleus interactions at 800 GeV using scaled factorial correlators and split-bin correlation functions. The behaviors of factorial correlators as a function of bin-bin distance in pseudorapidity as well as bin width is consistent with the random cascading picture of hadronization. From the analysis of the split-bin correlation functions as a function of bin-width, it is found that the two-particle dynamical correlations are due to resonance-like production mechanism.

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