Abstract

The rate of particles leaving a planar channeling regime is studied in the framework of nonequilibrium statistical theory. In the quasiclassical case, an analytical expression for the corresponding kinetic coefficient \(R_{N}^{{({\text{dec)}}}}\) is obtained for high-energy particles interacting with valence electrons. At high temperatures, the expression for particle transition is found to agree reasonably well with the probability of thermal (nonradiating) transition of particles from channeling. The rate coefficient \(R_{N}^{{({\text{dec)}}}}\) including terms of the lowest order with respect to the particle–electron interaction is inversely proportional to vibrational energy relaxation time τ_ν, while the anharmonicity of particle vibration in a planar channel has an effect on the relaxation process only because of its interference with the electron scattering.

中文翻译：

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准经典方法中离开平面通道状态的快速粒子的速率

摘要

在非平衡统计理论的框架内研究了离开平面通道状态的粒子速率。在准经典情况下，对于与价电子相互作用的高能粒子，获得了相应动力学系数\（R_ {N} ^ {{（{\ text {dec）}}}}} \）的解析表达式。在高温下，发现颗粒转变的表达式与颗粒从通道中发生热（非辐射）转变的可能性相当吻合。率系数\（R_ {N} ^ {{（{\文本{分解）}}}} \）包括最低顺序相对于该粒子-电子相互作用而言是成反比的振动能量弛豫时间τ _ν，而平面通道中粒子振动的非谐性仅由于其干扰电子散射而对弛豫过程产生影响。