Investigation of an angular distribution of protons in peripheral and central nucleus-nucleus collisions at the momentum of 4.2 A GeV/c

TL;DR

This paper analyzes proton angular distributions in nucleus-nucleus collisions at 4.2 A GeV/c, highlighting critical phenomena in central collisions and advocating for a percolation approach for comprehensive understanding.

Contribution

It provides experimental data on proton angular distributions and emphasizes the importance of percolation theory in describing central collision phenomena.

Findings

Existence of critical phenomena in central collisions

Influence of nuclear fragmentation on angular distributions

Support for percolation approach in collision analysis

Abstract

The experimental results on the relation between the number of events, the angular distributions of protons and full number of protons are presented for ${}^{12}CC$-interactions at the momentum of 4.2 A GeV/c. The influence of nuclear fragmentation process on the results is also considered. The obtai- ned results confirm the assumption that there exist the critical phenomena among the central collisions and it is necessary to use a percolation approa- ch for the full description of the central collisions.