Calculation of Elastic Differential Cross Sections for Electron Scattering by Molecular Hydrogen
XIE Ting-Xian1, ZHOU Ya-Jun1, PAN
Shou-Fu1, YU Jun-Hua2
1Institute of Atomic and Molecular Physics, Jilin University, Changchun 130023
2Tunable Laser Technology National Key Laboratory, Harbin Institute of Technology, Harbin 150001
Calculation of Elastic Differential Cross Sections for Electron Scattering by Molecular Hydrogen
1Institute of Atomic and Molecular Physics, Jilin University, Changchun 130023
2Tunable Laser Technology National Key Laboratory, Harbin Institute of Technology, Harbin 150001
Abstract： Differential cross sections for the elastic scattering of electrons by H2 at 100 eV and 150 eV have been calculated and compared with experiments. We use the momentum space method in which the electron-molecule system has a single centre and the interaction of electron-nuclei is expanded by a multipole expansion. The static exchange calculation is supplemented by a phenomenological polarization potential. Electron-molecule scattering is reduced to an electronic problem by the Born--Oppenheimer approximation, using closure over the vibrational and rotational states.
2001, Vol. 18 
