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

A. R. Swann

doi:10.1088/1742-6596/1412/5/052009

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

A. R. Swann

School of Mathematics and Physics

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Abstract

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 language	English
Article number	052009
Number of pages	7
Journal	Journal of Physics: Conference Series
Volume	1412
DOIs	https://doi.org/10.1088/1742-6596/1412/5/052009
Publication status	Published - 01 Jan 2020

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10.1088/1742-6596/1412/5/052009Licence: CC BY

Many-body-theory calculation of positronium scattering by atomic hydrogen
Copyright 2020 the authors. This is an open access article published under a Creative Commons Attribution License (https://creativecommons.org/licenses/by/3.0/), which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited.
Final published version, 1.05 MBLicence: CC BY

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abstract = "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.",

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AB - 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.

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

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