RECENT DEVELOPMENT IN THE THEORY OF FAST POSITRON-ATOM COLLISIONS

被引：1
作者：
WARD, SJ
机构：
[1] Department of Physics, University of North Texas, Denton
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1995年 / 99卷 / 1-4期
关键词：
D O I：
10.1016/0168-583X(95)80084-0
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
We will review some recent high energy theories of positronium formation in positron-hydrogen collisions, and compare these theories to the recent experimental measurements. We will also present high energy theories of positron-impact ionization of hydrogen. A comparison of these theories with the two sets of experimental measurements clearly shows that positron-impact ionization of hydrogen is not completely understood. In particular, the role of positronium formation to the continuum in positron-hydrogen ionization is presently not known. Structures arising from the interference between two double-binary collision processes in the triply differential cross section of positron-impact ionization of hydrogen will be discussed.
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收藏
页码：368 / 371
页数：4
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