Distorted Wave Method Calculation of Positron Impact Excitation of 21s State of Helium Atom

W.M. Ndeke, J. Okum, C.S. Singh


We have calculated the differential and integral cross-section for positron-helium scattering for the excitation of 11S to 21S state at impact energy range of 22-200eV using a distorted wave method. The results are compared with the available experimental and theoretical results. It is observed that at higher energies present results are in good agreement with other theoretical results.

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ISSN (Paper)2224-719X ISSN (Online)2225-0638

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