Many-body-theory calculation of positronium scattering by atomic hydrogen

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The recently developed many-body-theory approach for studying low-energy positronium-atom interactions is applied to calculate positronium scattering by atomic hydrogen. Calculations are carried out for the case where the two electrons are in a spin- triplet state. The elastic scattering phase shifts and cross sections are compared with existing coupled-channel, stochastic-variational, and Kohn-variational results, and excellent agreement is obtained.
Original languageEnglish
Article number052009
Number of pages7
JournalJournal of Physics: Conference Series
Publication statusPublished - 01 Jan 2020


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