Theoretical and computational studies of electron and positron collisions with atomic and molecular systems

点击翻译按钮获取中文摘要

Our research involves the calculation of the scattering of electrons and positrons from atomic and molecular systems. Positrons are the anti-particles of electrons and although they annihilate with electrons, they live long enough to scatter from atoms and molecules and for this scattering to be measured in the laboratory. In our calculations, we treat the positron as an electron but with the opposite electric charge. There is a simplification in that the positron is a distinct particle from those in its scattering target and therefore it cannot interchange with any of these particles the way an electron can. However, a positron and an electron can form a bound state, positronium. Positron scattering is a field of active research experimentally to investigate the interaction between matter and anti-matter and we will compare our results to these measurements to guide future studies.