Multifractal detrended moving average analysis of particle density functions in relativistic nuclear collisions

Provash Mali, Amitabha Mukhopadhyay and Gurmukh Singh

Physica A: Statistical Mechanics and its Applications, 2016, vol. 450, issue C, 323-332

Abstract: Fluctuations in particle density functions in 28Si+Ag(Br) collision at 14.5A GeV and 32S+Ag(Br) collision at 200A GeV are investigated using the multifractal detrended moving average (MFDMA) method. Multifractal parameters obtained from the data analysis are systematically compared with the ultra-relativistic quantum molecular dynamics (UrQMD) model simulation. It is found that the single particle density functions in both the experiments are multifractal in nature. Further, the degree of multifractality in the simulated event samples is almost equal to the corresponding empirical data. The results of this analysis differ significantly from those obtained from other conventional techniques of multifractal analysis previously used for the same sets of data.

Keywords: Multifractal detrended moving average analysis; High-energy heavy-ion collisions; Generalized Hurst exponent; Multifractal spectral function (search for similar items in EconPapers)
Date: 2016
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:450:y:2016:i:c:p:323-332

DOI: 10.1016/j.physa.2016.01.023

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