Freezeout properties of different light nuclei at the RHIC beam energy scan

We study the transverse momentum spectra of light nuclei (deuteron, anti-deuteron and triton) produced in Gold-Gold (Au-Au) collisions different centrality bins by blast wave model with Tsallis statistics. The results are agreement experimental data measured STAR Collaboration special ranges. extracted kinetic freezeout temperature, flow velocity volume. It is observed that temperature increases initially, then saturates from 14.5–39 GeV, while volume increase initially up to 19.6 GeV but 19.6–39 GeV. This may indicate phase transition starts part ends whole at 39 critical point exists somewhere energy range present work has a decreasing trend central peripheral collisions. found triton smaller than those deuteron anti-deuteron, which shows earlier anti-deuteron.