An effective eigenchannel R-matrix calculation of electron-ion scattering processes with spectroscopic precision

28th International Conference on Photonic, Electronic and Atomic Collisions

Gao, Xiang^1 ; Li, Jia-Ming^2,3

Beijing Computational Science Research Center, Beijing

100084, China^1

Department of Physics, Center for Atomic and Molecular Nanosciences, Tsinghua University, Beijing

100084, China^2

Department of Physics, Joint Center for Inertial Fusion Science and Application of China, Shanghai Jiao Tong University, Shanghai

200240, China^3

关键词: Degree of accuracy;    Differential cross section;    Electron-ion scattering;    Excitation cross section;    R-matrix calculation;    Scattering cross section;    Scattering matrices;    State of the art;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/488/6/062019/pdf
DOI  :  10.1088/1742-6596/488/6/062019

来源: IOP

【 摘 要 】

Using our eigenchannel R-matrix method, the scattering matrices in the whole energy regions can be directly calculated with spectroscopic precision. From the short range scattering matrices, various scattering cross sections, such as total excitation cross sections, differential cross sections and so on, can be obtained. The e+Kr+system is used as an illustration example, the degree of accuracies of scattering matrices is calculated within about 6%, which should be much more accurate than state-of-the-art scattering experiments.