论文标题
来自AMPT模型的相对论重离子碰撞中的光核产生
Light nuclei production in relativistic heavy ion collisions from the AMPT model
论文作者
论文摘要
基于改进的多相传输（AMPT）模型，该模型很好地描述了质子的产生，并在相对论重离子碰撞中具有平滑的夸克物质，我们研究了这些碰撞的核酸核子合并的迪特伦和特里顿产生。 For Au+Au collisions at center-of-mass energies $\sqrt{s_\text{NN}}$ from 7.7 GeV to 200 GeV available at the Relativistic Heavy Ion Collider (RHIC), we find that the yield ratio $N_\text{t}N_\text{p}/N_\text{d}^2$ of proton, Deuteron \ com {，}和Triton本质上是碰撞能量的函数的常数。我们的结果证实了这样一种预期，即如果没有一阶夸克对产生物质或其对QCD物质临界点的方法的望态物质过渡，则该产率比在其碰撞能量依赖性中不会显示任何非单调行为。
Based on an improved multiphase transport (AMPT) model, which gives a good description of proton production with a smooth quark matter to hadronic matter transition in relativistic heavy ion collisions, we study deuteron and triton production from the coalescence of nucleons at the kinetic freezeout of these collisions. For Au+Au collisions at center-of-mass energies $\sqrt{s_\text{NN}}$ from 7.7 GeV to 200 GeV available at the Relativistic Heavy Ion Collider (RHIC), we find that the yield ratio $N_\text{t}N_\text{p}/N_\text{d}^2$ of proton, deuteron\com{,} and triton is essentially a constant as a function of collision energy. Our result confirms the expectation that without a first-order quark to hadronic matter phase transition in the produced matter or its approach to the critical point of the QCD matter, this yield ratio does not show any non-monotonic behavior in its collision energy dependence.
