POSITRON-HELIUM SCATTERING IN THE CLOSE-COUPLING APPROACH
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Elsevier B.V.
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Abstract
We present results for low-energy elastic S-, P-, and D-wave phase shifts, capture and total cross sections of positron-helium scattering with different basis sets in the close coupling approach using realistic wave functions for He(1s1s), He(1s2(1)s), He(1s2(1)p) and positronium (1s) states. A resonance is found in the S-wave capture cross section at 84 eV.
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English
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Chemical Physics Letters. Amsterdam: Elsevier B.V., v. 239, n. 4-6, p. 344-348, 1995.
