Systematic study of symmetry energy within the SMM picture of multifragmentation

TL;DR

This paper systematically investigates how secondary decay influences the extraction of symmetry energy coefficients in nuclear multifragmentation, comparing methods within the Statistical Multifragmentation Model and with experimental data.

Contribution

It provides a comprehensive analysis of secondary decay effects on symmetry energy extraction methods within SMM, highlighting the effectiveness of isoscaling with light fragments.

Findings

Isoscaling with light fragments best estimates input symmetry energy.

Secondary decay significantly affects symmetry energy measurements.

Comparison with experimental data validates the isoscaling approach.

Abstract

A systematic study on the effect of secondary decay on the symmetry energy coefficient extracted by isoscaling and the recently proposed isobaric yield ratio methods within the Statistical Multifragmentation Model is performed. The correlations between the input symmetry energy coefficients and the calculated ones from both primary and secondary fragment yields are analysed. Results for secondary fragments show that the best estimation of the input symmetry energy coefficient within SMM is obtained by the isoscaling method, using the yields of light fragments. A comparison to experimental results is also presented.