论文标题
在$ \ sqrt {s_ {nn}} $ = 7.7-80 GEV中的au + au碰撞中的光核生产。
Light nuclei production in Au + Au collisions at $\sqrt{s_{NN}}$ = 7.7-80 GeV from UrQMD model
论文作者
论文摘要
相对论$^{197} $ au + $^{197} $ au碰撞从7.7到80 GEV中的光核产生在超相关的Quantum-quantum-molocular-molocular-molocular-molecular-collecular-dynalics模型（URQMD）中，采用天真的融合方法进行了研究。 The results of the production of light nuclei at midrapidity can essentially match up the experimental data and a slight enhancement of combined ratio of ${N_{p}N_{t}}/{N_{d}^{2}}$ where $N_p, N_d$ and $N_t$ represent respectively the yields of proton, deuteron and triton, which is sensitive to the neutron密度波动，发生在20 GEV左右。但是，这种增强的$ {n_ {p} n_ {t}}/{n_ {n_ {d}^{2}} $不应该过度理解比率，因为考虑到当前的URQMD模型是没有状态方程的级联版本（EOS），即没有关键的最终点机构。此外，在不同的速度区域内，还讨论了通过Blast-Wave模型分析提取不同光核的动力温度，并且还讨论了不同光核之间的比率。
Light nuclei production in relativistic $^{197}$Au + $^{197}$Au collisions from 7.7 to 80 GeV is investigated within the Ultra-relativistic-Quantum-Molecular-Dynamics model (UrQMD) with a naive coalescence approach. The results of the production of light nuclei at midrapidity can essentially match up the experimental data and a slight enhancement of combined ratio of ${N_{p}N_{t}}/{N_{d}^{2}}$ where $N_p, N_d$ and $N_t$ represent respectively the yields of proton, deuteron and triton, which is sensitive to the neutron density fluctuations, occurs around 20 GeV. However, this enhanced ${N_{p}N_{t}}/{N_{d}^{2}}$ ratio should not be over-understood considering that the present UrQMD model is a cascade version without equation of state (EoS), i.e. there is an absence of critical end point mechanism. Furthermore, within different rapidity regions, the kinetic temperatures of different light nuclei are extracted by the Blast-wave model analysis and ratios among different light nuclei are also discussed.
