Study on initial geometry fluctuations via correlation of finite distributions of secondary particles in nucleus-nucleus interactions

Abstract

The study of the peculiarities of the distribution of secondary particles depending on the degree of centrality and the degree of asymmetry of the interacting nuclei, is performed. The number of multicharged fragments of the projectile nucleus (N_f) in interactions of sharply asymmetric nuclei depends on the centrality degree of interaction. In the majority of peripheral interactions N_f is equal 1. In the most of the central interactions there are N_f > 1 or N_f=0. At that, the events with Nf =1 are separated clearly in the distribution of the total charge of the fragments of a projectile nucleus (Q) depending on the nature of the correlation of the number of fragments of the target nucleus (N_h) and the multiplicity of secondary particles from interaction area (n_s). The peak in the field of the maximum values of Q characterizes peripheral events with various degree of the periphery on a growing branch of average N_h-ns curve. And the peak in the field of small Q characterizes the central events with various degree of centrality on the decreasing branch of average N_h-ns curve.