On Dynamics of Fractality in Central C-Cu Collisions at 4.5A Gev/c

Fractal structure of charged particle distributions in the pseudorapidity and transverse momentum in central C-Cu collisions at 4.5A GeV/c is studied by means of intermittency approach and multifractal analysis. The modifications to take into account statistical bias are applied. Intermittency study in the pseudorapidity phase space indicates a non-thermal phase transition and different regimes of multiparticle production. Multifractality is observed within the both methods applied. The interrelation of the methods using the effective average multiplicity approach is studied. The findings support the idea of statistical significance of influence of finite multiplicities. In the transverse momentum spectrum no dynamical fluctuations are found.