Scattering processes in antiprotonic hydrogen - hydrogen atom collisions

Details Scattering processes in antiprotonic hydrogen - hydrogen atom collisions Scattering processes in antiprotonic hydrogen - hydrogen atom collisions

2005-12-30

arxiv.org/abs/nucl-th/0512107v2

Physics

Nuclear Physics

Nuclear Theory

9 pages, 4 figures,typos corrected

Scientific paper

The elastic scattering, Stark transitions and Coulomb deexcitation of excited antiprotonic hydrogen atom in collisions with hydrogenic atom have been studied in the framework of the fully quantum-mechanical close-coupling method for the first time. The total cross sections $\sigma_{nl \to n'l'}(E)$ and averaged on the initial angular momentum $l$ cross sections $\sigma_{n\to n'}(E)$ have been calculated for the initial states of $(\bar{p}p)_{n}$ atoms with the principal quantum number $n=3 - 14 $ and at the relative energies $E=0.05 - 50$ eV. The energy shifts of the $ns$ states due to the strong interaction and relativistic effects are taken into account. Some of our results are compared with the semiclassical calculations.

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