简谐势下正电子散射辐射的计算
Calculation of Positron Channeling Radiation with a Harmonic Potential
摘要：
在我们最近提出的方法框架内，我们给出了一个详细的计算平面沟道正电子从晶体靶的沟道辐射。与以前晶体中沟道辐射的计算不同，我们的计算考虑了不同跃迁振幅之间的干涉。发展源于这样的想法，即给定过程的振幅是每个跃迁到较低横向能量态的跃迁振幅之和，其中束缚-束缚跃迁之间的能量差相同。似乎只有当正电子在具有等距离能级的近简谐平面势中运动时，才有可能得到一致的解释。
英文摘要：
We present a detailed calculation of channeling radiation of planar-channeled positrons from crystal targets in the framework of our approach, which was proposed recently. In contrast to previous calculations of channeling radiation in crystals, our calculation takes into account the interference between different transition amplitudes. The development stemmed from the idea that the amplitude for a given process is the sum of the transition amplitudes for each transition to lower state of transverse energy with the same energy differences between bound-bound transitions. It seems that a consistent interpretation is only possible if positrons move in a nearly harmonic planar potential with equidistant energy levels.
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