论文标题
迪特隆分手在迪特隆淘汰反应中的重要性
Importance of the deuteron breakup in the deuteron knockout reaction
论文作者
论文摘要
预计具有相似质子和中子数的核中会出现一对Isoscalar $ pn $对，并且它可能是Deuteron``集群''的候选者。但是，没有实验性证据。本文的目的是为（$ p，pd $）反应构建一个新的反应模型，包括基本过程中的杜特隆分裂和最终国家互动（FSIS）的迪特隆改革。这些过程如何促进反应的可观察结果。扭曲的波脉冲近似以双重延伸。描述了（$ p，pd $）的基本过程，即$ p $ - $ d $弹性散射和$ d（p，p）pn $反应，用脉冲图片使用核素核子有效的互动来描述。 （$ p，pd $）反应的最终状态中的三体散射波是用连续二式耦合通道法计算的。 （$ p，pd $）反应的三重差分横截面（TDX）用新模型计算。目前的模型很好地描述了基本过程。至于（$ p，pd $）反应，根据迪特隆的弹性和分裂通道之间的干扰，杜特隆的改革可以增加或降低TDX高度，而\ textIt {back-coupling}效果总是会降低它。结果表明，杜特隆改革通过干扰显着改变了（$ p，pd $）反应的TDX。重要的是要纳入此过程，以鉴于核中的Deuteron形成，定量讨论（$ p，pd $）横截面。有关实验数据的更定量讨论，将需要进一步改进。
An isoscalar $pn$ pair is expected to emerge in nuclei that have similar proton and neutron numbers and it may be a candidate for a deuteron ``cluster.'' There is, however, no experimental evidence for it. The purpose of this paper is to construct a new reaction model for the ($p,pd$) reaction including the deuteron breakup in the elementary process and the deuteron reformation by the final-state interactions (FSIs). How these processes contribute to the observables of the reaction is investigated. The distorted wave impulse approximation is extended in twofold. The elementary processes of the ($p,pd$), i.e., the $p$-$d$ elastic scattering and $d(p,p)pn$ reaction, are described with an impulse picture employing a nucleon-nucleon effective interaction. The three-body scattering waves in the final state of the ($p,pd$) reaction are calculated with the continuum-discretized coupled-channels method. The triple differential cross section (TDX) of the ($p,pd$) reaction is calculated with the new model. The elementary processes are described reasonably well with the present model. As for the ($p,pd$) reaction, the deuteron reformation can either increase or decrease the TDX height depending on the interference between the elastic and breakup channel of deuteron, while the \textit{back-coupling} effect always decreases it. It is shown that the deuteron reformation significantly changes the TDX of the ($p,pd$) reaction through the interference. It is important to include this process to quantitatively discuss the ($p,pd$) cross sections in view of the deuteron formation in nuclei. For more quantitative discussion regarding the experimental data, further improvement will be necessary.
