Systematic study of the symmetry energy within the approach of the statistical multifragmentation model

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 (SMM) is performed. The correlations between the input symmetry energy coefficients and the calculated ones from both primary and secondary fragment yields are analyzed. 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.