Close-coupling approach to antiproton-impact ionisation of H2 with analytical spherical averaging

28th International Conference on Photonic, Electronic and Atomic Collisions

Abdurakhmanov, I.B.^1 ; Kadyrov, A.S.^1 ; Fursa, D.V.^1 ; Bray, I.^1

ARC Centre for Antimatter-Matter Studies, Department of Applied Physics, Curtin University, Perth

6152, Australia^1

关键词: Ab initio;    Antiproton impact;    Averaging technique;    Close-coupling approach;    Impact energy;    Integrated cross sections;    Molecular hydrogen;    Molecular targets;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/488/10/102032/pdf
DOI  :  10.1088/1742-6596/488/10/102032

来源: IOP

【 摘 要 】

Integrated cross section for single ionisation of molecular hydrogen by antiproton impact has been calculated in a wide range of impact energies from 1 keV up to 2 MeV using a close-coupling approach. For the first time all possible orientations of the molecular target have been accounted for using an ab initio analytical spherical averaging technique. Obtained results are in good agreement with experiment.