论文标题
$^{132} $ sn + $^{124} $ sn碰撞在270 meV/nucleon中
Neutron-proton differential transverse flow in $^{132}$Sn + $^{124}$Sn collisions at 270 MeV/nucleon
论文作者
论文摘要
在传输模型中，我们研究了中子 - 普罗顿差分横向流及其在中央$^{132} $ sn + $^{124} $ sn碰撞时的激发功能。为了更准确地评估对称能量\ esym对这种可观察到的高密度行为的影响，我们还考虑了\ eSym围绕饱和密度$ρ_{0} $的不确定性的不确定性。结果表明，中子 - 普罗顿差异横向流及其激发功能主要对$ρ_{0} $的\ esym的斜率$ l $敏感。但是，还应考虑\ esym对这种可观察到的可观察到的低密度行为的影响。因此，建议对中子 - 普罗顿差异横向流的测量及其激发功能可能为从S $π$ RIT实验中的光谱旋转比提取的$ L $的约束提供有用的补充。
Within a transport model, we study the neutron-proton differential transverse flow and its excitation function in central $^{132}$Sn + $^{124}$Sn collisions at 270 MeV/nucleon. To more accurately evaluate effects of the high-density behavior of symmetry energy \esym on this observable, we also consider the uncertainties of \esym around the saturation density $ρ_{0}$. It is shown that the neutron-proton differential transverse flow and its excitation function are mainly sensitive to the slope $L$ of \esym at $ρ_{0}$. However, the effects of low-density behavior of \esym on this observable should also be considered. Therefore, it is suggested that measurements of the neutron-proton differential transverse flow and its excitation function may provide useful complements to the constraints on $L$ extracted from the spectral pion ratio in S$π$RIT experiments.
