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 $d$, $t$, $^{ 3}$He, and $^{ 4}$He is studied using the transport model JAM with a simplified afterburner coalescence at $\sqrt{ s_{ NN}}=3$ GeV Au+Au collisions. We scan the cut-off of phenomenological coalescence parameters, the relative spatial distance $\Delta R$ and momentum difference $\Delta P$, for formation of light nuclei by nucleon coalescence to reproduce the light nuclei $p_{ \rm T}$ spectra measured by 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.
Categories: nucl-th