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Differential and partial cross sections of elastic and inelastic positronium-helium-atom scattering

Sadhan K. Adhikari
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Abstract

Scattering of positronium (Ps) by helium atom has been investigated in a three-Ps-state coupled-channel model including Ps(1s,2s,2p) states using a recently proposed time-reversal-symmetric regularized electron-exchange model potential. Specifically, we report results of differential cross sections for elastic scattering and target-elastic Ps excitations. We also present results for total and different partial cross sections and compare them with experiment and other calculations.

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Sadhan K. Adhikari. 2000-12-17. Differential and partial cross sections of elastic and inelastic positronium-helium-atom scattering. https://doi.org/10.1103/physreva.62.062708

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