Speaker
Description
In high-energy nuclear collisions, the light nuclei production is sensitive to the temperature and density of the system at freeze-out. It is also predicted to be sensitive to local baryon density fluctuations and can be used to probe the QCD phase transition. The second phase of Beam Energy Scan (BES-II) program at RHIC was completed in 2021. The high-statistics data recorded by the STAR experiment provide a unique opportunity to carry out high-precision measurements on the light nuclei production.
In this poster, we will report the results of the centrality and transverse momentum dependence of proton($\mathrm{p}$), deuteron($\mathrm{d}$) and $^{3}\mathrm{He}$ production in Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}$ = 14.6 and 19.6 GeV measured by the STAR experiment. We will also present the centrality dependence of coalescence parameters ($\mathrm{B_2(d)}$ and $\mathrm{B_{3}(^{3}He)}$) and particle ratios ($\mathrm{N_{d}/N_{p}}$ and $\mathrm{N_{^{3}\mathrm{He}}/N_{p}}$), and discuss their physics implications.
| Category | Experiment |
|---|---|
| Collaboration (if applicable) | STAR RHIC |
