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Positronium scattering by atoms and molecules at low energies | | Sadhan K. Adhikari
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12 Sep 2001 | | Journal: | Nucl. Inst. Met. Phys. Res. B 192 (2002) 74-82 | | Subject: | Chemical Physics; Atomic and Molecular Clusters | physics.chem-ph physics.atm-clus | | Abstract: | The recent theoretical and experimental activities in positronium (Ps) scattering by atoms and molecules are reviewed with special emphasis at low energies. We critically compare the results of different groups $-$ theoretical and experimental. The theoretical approaches considered include the $R$-matrix and close-coupling methods applied to Ps-H, Ps-He, and Ps-Li scattering, and a coupled-channel approach with a nonlocal model-potential for Ps scattering by H, He, H$_2$, Ne, Ar, Li, Na, K, Rb, Cs, and Ps and for pickoff quenching in Ps-He scattering. Results for scattering lengths, partial, total and differential cross sections as well as resonance and binding energies in different systems are discussed. | | Source: | arXiv, physics/0109029 | | Services: | Forum | Review | PDF | Favorites | |
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