Pseudorapidity distribution study for shower particles emerged in the interactions of 84Kr with emulsion at 1 GeV per nucleon

An important area of contemporary particle and nuclear physics is investigating the nature of heavy ion reactions at high energies. Pseudorapidity (η), is a crucial parameter for analyzing the mechanisms of particle production in high-energy collisions between nuclei. In this paper η distribution of shower particles produced in the interaction of 84Kr with nuclear emulsions at 1 A GeV have been studied using two different parameters (Nh and Q). The different η-distributions can be described by Gaussian distribution. The statistical moments of the shower particles’ η distribution such as M (mean), σ2 (variance), and scaled variance ω (σ2/M) are measured. The observations reveals that the width (i.e. dispersion) of these distributions showing only a weak dependence on the type of projectile, while the mean value of η increases with increasing projectile mass (AP ). This study also shows that the cascading effect i.e. the created pions scattering on another target nucleon before emission becomes more pronounced as the target size increases. The ω values which characterizes the fluctuations of the distributions, is decreases slowly with increasing Nh values.