کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
11029575 1646486 2018 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Rotational excitation of tetrahedral molecules by positron impact in the Born approximation
ترجمه فارسی عنوان
تحریک چرخشی از مولکولهای چهارگانه با تاثیر مثبت در تقریب متورم
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
چکیده انگلیسی
Rotational cross sections of tetrahedral molecules for low energy positron impact is the theme of this work. The scattering model is based in the Born approximation combined to multipole formulation for the scattering potential. We choose the CH4 and CF4 molecules as model systems to illustrate the theory. We obtain analytical expressions for octupole and hexadecapole transitions in relative momentum and partial waves formulations. The dependence of the cross sections on the molecular multipole moments, as well as the incident particle energy is directly identified. Comparison to the ab initio results found in literature exhibit good agreement for positron-CH4 rotational cross sections.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electron Spectroscopy and Related Phenomena - Volume 229, December 2018, Pages 33-41
نویسندگان
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