论文标题
Si晶体中通道正电子的单光子歼灭
The Single-Photon Annihilation of Channeled Positron in Si Crystal
论文作者
论文摘要
计算了一个晶体原子的K壳电子上通道的单光子歼灭的差异横截面，并研究了发射光子的角度分布。结果表明，相对于晶体平面，横截面对正电子入口角具有复杂的依赖性。证明，对于不同的正电子横向能级，这种方向依赖性不同。研究了差分横截面对电子纵向能的依赖性。
The differential cross-section of the single-photon annihilation of channeled positron on the K-shell electron of one of the crystal atoms is calculated and angular distribution of emitted photons is investigated. It is shown that cross-section has a complicated dependence on positron entrance angle with respect to crystal plane. It is demonstrated that this orientation dependence is different for different positron transverse energy levels. The dependence of the differential cross-section on the electron longitudinal energy is studied.
