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Effect of H$^-$ ion formation on Positronium-Hydrogen elastic scattering

P K Biswas
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Abstract

Effect of charge-transfer recombination for positronium (Ps) scattering is studied on Ps-H system using coupled-channel formalism considering a new rearrangement channel Ps+H --> e^+ + H^- and exchange. The correlation and continuum effects introduced by this charge-transfer channel result to substantial convergence to the low energy scattering parameters. Effects on scattering length, PsH binding energy, and low-energy (0-10 eV) phase-shifts and cross sections are evaluated and H$^-$ formation cross sections are reported from above the threshold (6.438 eV) to 100 eV.

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P K Biswas. 2001-06-13. Effect of H$^-$ ion formation on Positronium-Hydrogen elastic scattering. https://doi.org/10.1088/0953-4075/34/23/325

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