https://doi.org/10.1140/epjp/s13360-021-01803-3
Regular Article
Degree of multifractality and correlations in framework of multi-dimensional complex network analysis for 
O–Ag/Br interactions at 60 A GeV
1
Department of Physics, Cooch Behar Panchanan Barma University, Panchanan Nagar, Vivekananda Street, 736101, Cooch Behar, India
2
Egyptian Center for Theoretical Physics (ECTP), Juhayna Square of 26th-July-Corridor, 12588, Giza, Egypt
Received:
9
April
2021
Accepted:
26
July
2021
Published online:
6
August
2021
The nature of fractality and correlations in relativistic heavy-ion interactions of O–Ag/Br at collision energy 60 A GeV are investigated in the framework of the sandbox algorithm using the concept of isotropy and anisotropy of phase space. In this work, we have attempted to find the deterministic information in 
space using the concept of Hurst exponent (H) by means of precise determination of topological parameters from the complex network perspective. The experimental data have been compared with Monte Carlo (MC) generated events to extract non-statistical dynamics. It has been observed that the process under study is multifractal in nature. It is also observed that the process is ruled by a small number of large fluctuations and contributes to correlated stochastic long-term positive auto-correlations. The characteristics of the multiparticle production process under study are independent of the spatial distribution of 
and 
space, where is pseudorapidity and is the azimuthal angle, but the degree of multifractality depends on the spatial distribution of pions in anisotropic phase space during the multiparticle production process. It is also observed that for different Hurst exponents, the multifractality of the experimental data sets are significantly different from the MC-simulated events.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2021
