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Convergent variational calculation of positronium-hydrogen-atom scattering lengths

Sadhan K. Adhikari·Puspajit Mandal
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Abstract

We present a convergent variational basis-set calculational scheme for elastic scattering of positronium atom by hydrogen atom in S wave. Highly correlated trial functions with appropriate symmetry are needed for achieving convergence. We report convergent results for scattering lengths in atomic units for both singlet ($=3.49\pm 0.20$) and triplet ($=2.46\pm 0.10$) states.

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Sadhan K. Adhikari, Puspajit Mandal. 2001-03-14. Convergent variational calculation of positronium-hydrogen-atom scattering lengths. https://doi.org/10.1088/0953-4075/34/6/106

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