Abstract
The nucleon coalescence model is one of the most popular theoretical models for light nuclei production in high-energy heavy-ion collisions. The production of light nuclei d, t, He, and He is studied using the transport model JAM with a simplified afterburner coalescence at GeV Au+Au collisions. We scan the cut-off of phenomenological coalescence parameters, i.e., the relative spatial distance and momentum difference , for the formation of light nuclei by nucleon coalescence to reproduce the light nuclei spectra measured by the STAR experiment. The results indicate a potential connection between the coalescence parameters and the binding energy as well as the diameter of these light nuclei.
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