粒子和反粒子与稀有气体碰撞中的多电子过程
Multielectronic processes in particle and antiparticle collisions with rare gases
摘要：
本章分析了|Z| =1的电子、正电子、质子和反质子碰撞的多重电离。这四个射弹的截面之间的差异和相似之处使我们能够对所涉及的物理学有一个深入的了解。质量和电荷效应，能量阈值，碰撞和碰撞后的过程的相对重要性进行了讨论。为此，我们进行了详细的理论和实验比较的一个到五倍的Ne，Ar，Kr和电子的电离粒子和反粒子。我们包括一个广泛的汇编的可用数据的16个碰撞系统，和理论截面的连续扭曲波程函初始状态近似的装置。我们在这里强调，碰撞后电离是决定性的描述多重电离的光射弹，几乎涵盖了整个能量范围，从阈值到高能量。正电子和反质子测量的电子碰撞，在某些情况下，缺乏数据的标准化，以及未来的前景提出和讨论。
英文摘要：
In this chapter we analyze the multiple ionization by impact of |Z|=1 projectiles: electrons, positrons, protons and antiprotons. Differences and similarities among the cross sections by these four projectiles allows us to have an insight on the physics involved. Mass and charge effects, energy thresholds, and relative importance of collisional and post-collisional processes are discussed. For this purpose, we performed a detailed theoretical-experimental comparison for single up to quintuple ionization of Ne, Ar, Kr and Xe by particles and antiparticles. We include an extensive compilation of the available data for the sixteen collisional systems, and the theoretical cross sections by means of the continuum distorted wave eikonal initial state approximation. We underline here that post-collisional ionization is decisive to describe multiple ionization by light projectiles, covering almost the whole energy range, from threshold to high energies. The normalization of positron and antiproton measurements to electron impact ones, the lack of data in certain cases, and the future prospects are presented and discussed.
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