Scaling behaviour of charged particles generated in Xe$-$Xe collisions at √sNN = 5.44 TeV using the AMPT model

The spatial configurations of particles produced in the kinematic phase space during a heavy-ion collision reflect the characteristics of the system created in the collision. The scaling behaviour of the multiplicity fluctuations is studied for the charged particles generated in Xe--Xe collisions at √sNN = 5.44 TeV using the String Melting (SM) mode of the AMPT (A Multi-Phase Transport) model. The scaling behaviour of the normalized factorial moments (Fq) give significant information about the dynamics of the systems under study. A linear power-law growth of the Fq with the increasing phase space resolution, termed as intermittency, is investigated. The anomalous fractal dimension Dq is determined, which is linked to the self-similarity and fractal nature of the particle emission spectra, a dependence of which on the order of the moment (q) is characterised by the intermittency index (φq). Relating qᵗʰ order Normalised Factorial Moment (NFM) with F₂, the scaling exponent ($ν$) is determined that quantifies the dynamics of the system created by these collisions and is analyzed for its dependence on the transverse momentum bin width (ΔpT). A comparative study of experimental and model results may help to understand the dynamics of multiparticle production in the heavy-ion collisions.