The break-up of the deuteron and stripping to unbound states
The break-up of the deuteron and stripping to unbound states
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DOI：
10.1016/0370-1573(76)90038-7
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发表时间：
1976-06
期刊：
影响因子：
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通讯作者：
G. Baur;D. Trautmann
中科院分区：
文献类型：
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作者：
G. Baur;D. Trautmann
我们在重核场中处理氘核的分裂。我们的理论基于 DWBA 的后形式主义，对此进行了详细讨论。我们特别考虑传入氘核的能量低于库仑势垒的情况。这种亚库仑分裂允许通过将实验数据与理论进行比较来测试 DWBA。在此背景下研究了微小的影响，并严格审查了该过程的其他处理方法。为了直观地描述分解过程，我们引入了一个半经典模型。在第二部分中，该理论被扩展到未束缚（共振）态的剥离反应。我们表明，这种干扰直接分解过程的反应可以再次在 DWBA 的后形式中得到很好的描述。我们使用简单的模型讨论此类反应的最重要特征。特别关注“l增强”、“平行性”以及特定波函数对共振线形状的影响。对自由态剥离反应的各种理论进行了调查和比较，最后我们讨论了未来可能的发展。
We treat the break-up of the deuteron in the field of a heavy nucleaus. Our theory is based on the post formalism of the DWBA, which is discussed in detail. In particular we consider the case where the energy of the incoming deuteron is below the Coulomb barrier. This sub-Coulomb break-up permits a test of the DWBA by comparing experimental data with the theory. Small effects are investigated in this context, and other treatments of this process are reviewed critically. To give an intuitive picture of the break-up process we introduce a semiclassical model.In the second part the theory is extended to stripping reactions to unbound (resonant) states. We show that this reaction which interferes with the direct break-up process, can again be well described in the post-form of the DWBA. Using simple models we discuss the most important features of such reactions. Particular attention is paid to the “l-enhancement”, “parallelism” and the influence of the specific wave functions on resonance line shapes. A survey and comparison of various theories of stripping reactions to unbound states is given and finally we discuss possible future developments.