Dynamical properties and secondary decay effects of projectile fragmentation in 107,124Sn + 120Sn collisions at 600 MeV/nucleon

TL;DR

This paper investigates the fragmentation and decay processes in Sn + Sn collisions at 600 MeV/nucleon using the IQMD model, comparing results with experimental data to understand secondary decay effects.

Contribution

It introduces a combined dynamical and statistical approach to analyze projectile fragmentation and secondary decay effects in heavy-ion collisions.

Findings

Secondary decay significantly alters fragmentation observables.

The model's predictions agree well with experimental data.

Secondary decay impacts the interpretation of fragmentation results.

Abstract

The formation of the projectile spectator and the fragmentation processes in 107,124Sn + 120Sn collisions at 600 MeV/nucleon are studied with the isospin-dependent quantum molecular dynamics (IQMD) model. The minimum spanning tree algorithm and the ratio of parallel to transverse kinetic quantities are applied to identify the equilibrated projectile spectator during the dynamical evolution. The influence of secondary decay on fragmentation observables is investigated by performing calculations with and without the statistical code GEMINI. The validity of the theoretical approach is examined by comparing the calculated product yields and correlations with the experimental results of the ALADIN Collaboration for the studied reactions.