Fragmentation in nuclear reaction and its relation to EOS

3rd International Workshop on "State of the Art in Nuclear Cluster Physics"

Ono, Akira^1

Department of Physics, Tohoku University, Sendai

980-8578, Japan^1

关键词: Antisymmetrized Molecular dynamics;    Density dependence;    Heavy ion collision;    Incident energy;    Nuclear matters;    Nuclear symmetry energy;    Number of clusters;    Spectrum ratio;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/569/1/012086/pdf
DOI  :  10.1088/1742-6596/569/1/012086

来源: IOP

【 摘 要 】

Heavy-ion collisions in the incident energy region from several ten to several hundred MeV/nucleon are closely related to the properties of nuclear matter under various conditions of the density, the temperature and the neutron-proton asymmetry. The emission of a large number of clusters in collisions implies strong cluster correlations in nuclear matter that is expanding and breaking up into many fragments. The antisymmetrized molecular dynamics approach has been extended in order to describe the cluster emissions properly. Calculations show that the formation of α clusters affects strongly the observables, such as the3H/3He spectrum ratio, that are usually considered as probes of the density dependence of nuclear symmetry energy.