Abstract.
The triple differential cross-sections (TDCS) for the ionization of H- at excess energies of 8, 10 and 12 eV are calculated using distorted-wave Born approximation in the equal energy sharing and θab=180○ kinematics. The final state electron-electron correlation is included through effective charges and exchange distortion in semi-classical local approximation. The spin state of the exchanging electrons is taken care of. The angular distribution of the TDCS is very different from the case of helium and is found to show peaks at θa≈30○ and 150○. The capture process is found to contribute quite significantly around θa = 90○ and is supported by the PCI.
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Chauhan, R., Srivastava, M. & Srivastava, R. Triple differential cross-section for the ionization of H- at low energies. Eur. Phys. J. D 35, 499–503 (2005). https://doi.org/10.1140/epjd/e2005-00080-2
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DOI: https://doi.org/10.1140/epjd/e2005-00080-2