论文标题
QCD临界点对光核产生的影响
Effects of QCD critical point on light nuclei production
论文作者
论文摘要
使用核子合并模型，该模型自然可以考虑到细胞核密度分布的相关性，我们研究了QCD临界点对相对论重离子碰撞中光核产生的影响。我们发现，质子（$ p $），deuteron（$ d $）和Triton（$ t $）的收益率$ n_tn_p/n_d^2 $随着核子密度相关长度的单调增加，预计将显着增加QCD相图的关键点。因此，我们的研究表明，产量比$ n_tn_p/n_d^2 $可以用作对QCD关键现象的敏感探针。我们进一步讨论了重离子碰撞中QCD相变的关系，以及\ pdt〜在其碰撞能量依赖性中可能的非单调行为。
Using the nucleon coalescence model, which can naturally take into account the correlations in the nucleon density distribution, we study the effects of QCD critical point on light nuclei production in relativistic heavy-ion collisions. We find that the yield ratio $N_tN_p/N_d^2$ of proton ($p$), deuteron ($d$) and triton ($t$) increases monotonically with the nucleon density correlation length, which is expected to increase significantly near the critical point in the QCD phase diagram. Our study thus demonstrates that the yield ratio $N_tN_p/N_d^2$ can be used as a sensitive probe of the QCD critical phenomenon. We further discuss the relation between the QCD phase transitions in heavy-ion collisions and the possible non-monotonic behavior of \pdt~in its collision energy dependence.
