DISSOCIATIVE ATTACHMENT AND VIBRATIONAL-EXCITATION IN LOW-ENERGY COLLISIONS OF ELECTRONS WITH H-2 AND D2

被引:213
作者
BARDSLEY, JN
WADEHRA, JM
机构
[1] Physics Department, University of Pittsburgh, Pittsburgh
来源
PHYSICAL REVIEW A | 1979年 / 20卷 / 04期
关键词
D O I
10.1103/PhysRevA.20.1398
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A semiempirical analysis is made of the contributions of the two lowest resonant states to dissociative attachment and vibrational excitation in low-energy collisions of electrons with H2 and D2. The resonance models are based both on ab initio calculations and on fits to experimental data. The dissociative-attachment cross section near threshold is enhanced significantly by vibrational or rotational excitation of the initial molecule. Near 10 eV, contributions from both resonances are required to explain the observed cross sections for vibrational excitation. © 1979 The American Physical Society.
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页码:1398 / 1405
页数:8
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