# Scattering of positronium by H, He, Ne, and Ar

Source: [Scattering of positronium by H, He, Ne, and Ar](<https://www.sota2.com/research/paper/68fa34541e209131ce898323>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-24T20:36:28.907Z

Authors: P. K. Biswas, Sadhan K. Adhikari

Published: 2000-01-11T14:10:23.000Z

## Abstract

The low-energy scattering of ortho positronium (Ps) by H, He, Ne, and Ar atoms has been investigated in the coupled-channel framework by using a recently proposed time-reversal-symmetric nonlocal electron-exchange model potential with a single parameter $C$. For H and He we use a three-Ps-state coupled-channel model and for Ar and Ne we use a static-exchange model. The sensitivity of the results is studied with respect to the parameter $C$. Present low-energy cross sections for He, Ne and Ar are in good agreement with experiment.

## Recorded benchmark results

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/physics/0001024>)

[PDF](<https://arxiv.org/pdf/physics/0001024.pdf>)