论文标题
通过Star实验测量重离子碰撞中的光核产生
Measurement of Light Nuclei Production in Heavy-ion Collisions by the STAR experiment
论文作者
论文摘要
In these proceedings, we present the measurements of centrality, transverse momentum and rapidity dependences of proton ($p$) and light nuclei ($d$ ($\overline{d}$), $t$, $^{3}\mathrm{He}$ ($\overline{^{3}\mathrm{He}}$), and $ \+au在$ \ sqrt {s _ {s _ {\ mathrm {nn}} $ = 3 gev和isobaric（ru+ru和zr+zr）碰撞时，$ \ sqrt {s _ {s _ {s _ {s _ {s _ {s _ mathrm {s _ {发现3 GEV的中央碰撞中的化合物产量比大于传输模型计算。此外，与较高能量的光（$π$，$ k $，$ p $）相比，3 GEV的动力学冻结参数显示出不同的趋势。
In these proceedings, we present the measurements of centrality, transverse momentum and rapidity dependences of proton ($p$) and light nuclei ($d$ ($\overline{d}$), $t$, $^{3}\mathrm{He}$ ($\overline{^{3}\mathrm{He}}$), and $^{4}\mathrm{He}$) production in Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}$ = 3 GeV, and isobaric (Ru+Ru and Zr+Zr) collisions at $\sqrt{s_{\mathrm{NN}}}$ = 200 GeV. The compound yield ratios in central collisions at 3 GeV are found to be larger than the transport model calculations. Furthermore, the kinetic freeze-out parameters at 3 GeV show a different trend compared to those of light hadrons ($π$, $K$, $p$) at higher energies.
