Abstract
An attempt has been made to study the multiplicity, angular and pseudo rapidity distributions of relativistic charged particles emerging from the interactions between sulphur and nuclear emulsion nuclei at 200 GeV/nucleon. The distributions from 200 AGeV are compared to the corresponding distributions from the predictions of Monte Carlo code FRITIOF samples. The pseudo rapidity distributions in different Nh-intervals translate to the target fragmentation region with increasing target mass. Finally, the scaling of multiplicity distributions of shower particles successfully describes the consequences of KNO scaling.
Highlights
The advent of heavy ion beams at the CERN Super-proton Synchrotron (SPS) has opened a new field of ultrarelativistic heavy-ion collisions for systematic studies about the mechanism of particle production
The shower tracks produced in nucleus-nucleus collisions consists of tracks due to the particles created in the collisions and the projectile fragments of charge Z = 1
The multiplicity distribution of relativistic shower particles produced in the interaction of 32S projectile with nuclear emulsion at 200 AGeV is shown in Figure 1(a) along with the FRITIOF generated data for 32S-Em at the same energy by the dotted lines
Summary
The advent of heavy ion beams at the CERN Super-proton Synchrotron (SPS) has opened a new field of ultrarelativistic heavy-ion collisions for systematic studies about the mechanism of particle production. The relativistic shower particles which are produced in the first stage of the collisions having specific ionization g*(=g/go) < 1.4 and relative velocity β > 0.7 are considered to be most important parameter to understand the collision dynamics. The number of such tracks in an event is represented by “NS”. The multiplicity of relativistic charged particles in high energy nucleus-nucleus interactions is an important parameter which indicates how many particles are produced in that interaction. Special attention has been paid to different characteristics of relativistic charged shower particles that are produced in the interactions of 32S projectile with the target nuclei in nuclear emulsion at 200 AGeV. A simple universal function has been used to represent the KNO-scaling at different energies
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