Multiplicity Distributions of Shower Particles and Target Fragments in 84^Kr_36 - Emulsion Interactions at 1 GeV per nucleon

TL;DR

This study analyzes the multiplicity distributions of particles produced in 84^Kr_36 interactions with emulsion at 1 GeV per nucleon, revealing correlations and saturation effects in particle production.

Contribution

It introduces the application of the multi-source thermal model with Erlang distribution to describe multiplicity distributions in heavy ion collisions.

Findings

Multiplicity distributions fit well with the multi-source thermal model.

Linear correlations observed between different particle multiplicities.

Saturation phenomenon in shower particle multiplicity with increasing target fragments.

Abstract

The article focuses on the multiplicity distributions of shower particles and target fragments for the interaction of 84^Kr_36 possessing kinetic energy of ~1 GeV per nucleon with NIKFI BR-2 Nuclear Emulsion target. The experimental multiplicity distributions of shower particles, grey fragments, black fragments, and heavily ionization fragments are well described by the multi-component Erlang distribution of the multi-source thermal model. We observed a linear correlation in multiplicities for the above mentioned particles or fragments. The further experimental studies showed that with the increase of target fragment multiplicity, a saturation phenomenon was observed in shower particle multiplicity.