Theoretical Study of Isotope Production in The Peripheral Heavy-ion Collision 136Xe + Pb at 1 GeV/nucleon

TL;DR

This study combines experimental measurements and statistical modeling to analyze isotope yields from peripheral 136Xe+Pb collisions at 1 GeV/nucleon, confirming the universality of statistical disintegration in heavy-ion reactions.

Contribution

It introduces a comprehensive theoretical approach that successfully reproduces isotope yields, extending previous analyses at lower energies to higher-energy collisions.

Findings

Excellent agreement between theory and experiment for isotope yields

Universal statistical disintegration describes a broad element range

Model confirms previous low-energy reaction analyses

Abstract

We have studied the fragment yields emitted from the fragmentation of excited projectile nuclei in peripheral collisions of 136Xe+Pb at 1 GeV/nucleon, and measured with the high-resolution magnetic spectrometer, the Fragment Separator (FRS) of GSI. The mass, charge and isotope distributions of nuclear fragments formed in the reactions were calculated within a statistical ensemble approach and compared to the experimental data. The ensemble of excited projectilelike source nuclei were created in the framework of a previous analysis of similar reactions performed at 600 MeV/nucleon (ALADIN-experiments, GSI). In addition, the ensemble of the low-excited compound nuclei is involved in the analysis. The overall agreement between theory and experiment was very satisfactory in reproducing the experimental data of isotope yields measured in the heavy-ion collisions. It is confirmed that a broad range of elements can be reproduced within a universal statistical disintegration of the excited projectile residues.