A MULTICHANNEL QUANTUM DEFECT APPROACH TO DISSOCIATIVE RECOMBINATION
A MULTICHANNEL QUANTUM DEFECT APPROACH TO DISSOCIATIVE RECOMBINATION
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DOI：
10.1088/0022-3700/13/19/025
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发表时间：
1980-01-01
影响因子：
1.6
通讯作者：
GIUSTI, A
中科院分区：
文献类型：
--
作者：
GIUSTI, A
分子多通道量子亏损理论最初是用来描述电子从分子核区逃逸出来的，后来扩展到包括分子解离成两个原子。这两种类型的通道之间的混合是里德堡系列和中性分子的解离价态之间的电子相互作用的结果。这种相互作用作为附加相移引入到波函数的连续体部分。所得到的(前)电离和(前)解离的统一处理被应用于解离复合过程，遵循C-M-Lee的方法。通过在计算中考虑闭合的电子离子通道，充分考虑了振动激发里德堡态中通过电子俘获进行的“间接”过程。给出了模型计算，并测试了各种物理参数对解离复合分布的影响。
The molecular multichannel quantum defect theory, initially developed to describe the escape of an electron from the molecular core region, is extended to include dissociation of the molecule into two atoms. The mixing between the two types of channels results from electronic interaction between a Rydberg series and dissociative valence states of the neutral molecule. This interaction is introduced as an additional phaseshift into the continuum parts of the wavefunctions. The resulting unified treatment of (pre)ionisation and (pre)dissociation is applied to the process of dissociative recombination, following the approach of C M Lee. The ‘indirect’ process proceeding via electron capture in vibration-ally excited Rydberg states is taken into account fully by the inclusion of closed electronion channels in the calculation. Model calculations are presented and the influence of various physical parameters on the dissociative recombination profile is tested.