Capture contribution in very low energy (e, 2e) process on H

The triple differential cross section (TDCS) for the single ionization of hydrogen negative ion and helium atom at excess energy of 8eV is calculated and compared to each other in the equal sharing energy and θab = 180° using distorted-wave Born approximation. Post collision interaction (PCI) is inc...

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Bibliographic Details
Main Authors: Sharma, Kapil Kumar, Juneja, Soniya, Agarwal, S. C.
Format: Conference Proceeding
Language:English
Subjects:
Absorption cross sections
Born approximation
Charge exchange
Electron spin
Helium atoms
Ionization cross sections
Negative ions
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Summary:The triple differential cross section (TDCS) for the single ionization of hydrogen negative ion and helium atom at excess energy of 8eV is calculated and compared to each other in the equal sharing energy and θab = 180° using distorted-wave Born approximation. Post collision interaction (PCI) is incorporated through an effective charge model. The spin state of the exchange electron is taken care of. The capture process is found to be quite contributory for hydrogen negative ions rather than helium atoms.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0225235