Elastic cross sections for electron-ketenylidene (C2O) collisions -: art. no. 052706

被引：7
|
作者：
Fujimoto, MM [1 ]
Lee, MT
Michelin, SE
机构：
[1] Univ Fed Parana, Dept Fis, BR-81531990 Curitiba, Parana, Brazil
[2] Univ Fed Sao Carlos, Dept Quim, BR-13565905 Sao Carlos, SP, Brazil
[3] Univ Fed Santa Catarina, Dept Fis, BR-88040900 Florianopolis, SC, Brazil
来源：
PHYSICAL REVIEW A | 2004年 / 69卷 / 05期
基金：
巴西圣保罗研究基金会;
关键词：
D O I：
10.1103/PhysRevA.69.052706
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this work we report on a theoretical study on elastic electron collisions with ketenylidene radicals in the low and intermediate energy range. Calculated differential and momentum transfer cross sections for the e(-)-C2O collision are reported in the (1-500)-eV range. A complex optical potential composed by static, exchange, correlation-polarization plus absorption contributions, derived from a fully molecular wave function, is used to describe the interaction dynamics. The Schwinger variational iterative method combined with the distorted-wave approximation is applied to calculate scattering amplitudes. Comparison made between our calculated cross sections with the theoretical and experimental results for elastic e(-)-N2O collisions has revealed remarkable similarity for incident energies equal to 20 eV and above. Also, two shape resonances located at around 3 eV and 4.5 eV are observed and identified as due to the (2)Pi and the (4)Pi scattering channels, respectively.
引用
收藏
页码：052706 / 1
页数：6
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