The study of light nuclei production in different interactions at 4.2 AGeV/c

TL;DR

This paper investigates light nuclei production in various interactions at 4.2 AGeV/c, revealing multiplicity trends with projectile mass and centrality, and highlights discrepancies with existing models suggesting nuclear coalescence effects.

Contribution

It provides experimental data on light nuclei multiplicity across different interactions and compares these with model predictions, proposing nuclear coalescence as an explanatory factor.

Findings

Multiplicity increases with projectile mass.

Unexpected rise in multiplicity for central 12CC interactions.

Models fail to fully explain observed effects, suggesting additional nuclear processes.

Abstract

Average multiplicity of light nuclei produced in different interactions at 4.2A GeVc is studied as a function of centrality. A change in multiplicity is observed with increase in the mass of projectile. In 12CC-interactions an unexpected increase in the multiplicity is seen for the most central events. These measurements are compared with the predictions of Cascade and Fritiof Models which fail to account for the experimentally observed effects. In case of 12CC it is suggested that the inclusion of nuclear coalescence effect can be an explanatory reason for the differences between the experimental measurements and the models predictions.