Convergent calculations of positron scattering from molecular hydrogen

29th International Conference on Photonic, Electronic, and Atomic Collisions

Zammit, M.C.^1 ; Fursa, D.V.^1 ; Bray, I.^1

Curtin Institute for Computation, Department of Physics, Astronomy and Medical Radiation Sciences, Curtin University, Perth

WA

6102, Australia^1

关键词: Convergent close couplings;    Molecular hydrogen;    Partial wave expansion;    Positron scattering;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/1/012009/pdf
DOI  :  10.1088/1742-6596/635/1/012009

来源: IOP

【 摘 要 】

An overview is given of the recently developed adiabatic-nuclei convergent closecoupling method for positron-molecule scattering. Fixed-nuclei single-centre calculations of positron-H2scattering are presented. Particular emphasis is given to demonstrating convergence with increasing size of the basis and the projectile partial-wave expansion. Results are converged to within ±5%.