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Absolute differential and total cross sections for the scattering of positrons from helium

โœ Scribed by R.L. Chaplin; L.M. Diana; D.L. Brooks

Book ID
113282325
Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
363 KB
Volume
56-57
Category
Article
ISSN
0168-583X

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Positron-helium scattering: Resonance an
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โœ Puspitapallab Chaudhuri; Sadhan K. Adhikari ๐Ÿ“‚ Article ๐Ÿ“… 1998 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 278 KB

We study positron-helium scattering using close coupling approximation (CCA) employing different combinations of the following basis functions: He(Isis), He(ls2s), He(ls2p), Ps(ls), and Ps(2s), where Ps stands for the positronium atom. We observe a prominent S wave resonance of width 2 eV at about 3