论文标题
在$^{11} $ li中的Dinutron的表面定位
Surface localization of the dineutron in $^{11}$Li
论文作者
论文摘要
发现在核$^{11} $ li中形成了多核的形成,被发现位于表面区域。该实验通过$(p,p,pn)$敲除反应在246 meV/nucleon中测量了$^{11} $ li中中子的内在动量。两个中子之间的相关角度首次是根据内在中子动量的函数来测量的。与反应计算的比较揭示了Dinutron在$ r \ sim3.6 $ fm处的定位。该结果还支持核物质中的Hartree-fock-Bogoliubov计算得出的Dinutron形成的密度依赖性。
The formation of a dineutron in the nucleus $^{11}$Li is found to be localized to the surface region. The experiment measured the intrinsic momentum of the struck neutron in $^{11}$Li via the $(p,pn)$ knockout reaction at 246 MeV/nucleon. The correlation angle between the two neutrons is, for the first time, measured as a function of the intrinsic neutron momentum. A comparison with reaction calculations reveals the localization of the dineutron at $r\sim3.6$ fm. The results also support the density dependence of dineutron formation as deduced from Hartree-Fock-Bogoliubov calculations for nuclear matter.