Interference between direct ionisation and positronium formation in continuum in positron-hydrogen collisions

28th International Conference on Photonic, Electronic and Atomic Collisions

Kadyrov, A.S.^1 ; Bray, I.^1 ; Stelbovics, A.T.^1

ARC Centre for Antimatter-Matter Studies, Curtin University, GPO Box U1987, Perth

WA

6845, Australia^1

关键词: Fully differential cross sections;    Positron-hydrogen collisions;    Positronium formation;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/488/7/072003/pdf
DOI  :  10.1088/1742-6596/488/7/072003

来源: IOP

【 摘 要 】

The fully differential cross section for positron-impact ionisation of hydrogen is calculated in a two-centre Born approximation. It is suggested that two-centre approaches to the problem should assume incoherent combination of contributions from direct ionisation of the atom and positronium formation in continuum.