Interference effects in double electron capture in H+-H? collisions at low and intermediate impact energies

28th International Conference on Photonic, Electronic and Atomic Collisions

Labaigt, Gabriel^1 ; Sisourat, Nicolas^1 ; DuBois, Alain^1

Laboratoire de Chimie Physique-Matière et Rayonnement, Université Pierre et Marie Curie, Paris

75005, France^1

关键词: Classical model;    Coupled-channel approach;    Double electron capture;    Electron transfer;    Impact energy;    Interference effects;    Molecular energies;    Oscillatory behaviors;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/488/9/092004/pdf
DOI  :  10.1088/1742-6596/488/9/092004

来源: IOP

【 摘 要 】

Double electron transfer in H+-H collisions is investigated using a semiclassical coupled-channel approach in which the scattering wavefunction is developed onto a two-center/two-electron atomic basis. Cross sections are presented in a wide energy domain, from 50 eV to 30 keV and exhibit a strong oscillatory behavior, in agreement with earlier measurements. Using a semi-classical model based on the relevant molecular energy curves we demonstrate that these oscillations are the signatures of interferences between direct and sequential channels leading to double capture.