Close-coupling calculations of positronium formation in positron-helium scattering

dc.contributorUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T14:07:25Z
dc.date.available2014-05-20T14:07:25Z
dc.date.created2014-05-20T14:07:25Z
dc.date.issued1998-07-14
dc.identifierJournal of Physics B-atomic Molecular and Optical Physics. Bristol: Iop Publishing Ltd, v. 31, n. 13, p. 3057-3063, 1998.
dc.identifier0953-4075
dc.identifierhttp://hdl.handle.net/11449/23667
dc.identifier10.1088/0953-4075/31/13/022
dc.identifierWOS:000075028300022
dc.identifier8031087349809439
dc.description.abstractPositronium (Ps) formation in positron-helium scattering has been investigated in different partial waves at medium energies including the Ore gap region using the close-coupling approximation with realistic wavefunctions for the following states: He(1s1s), He(1s2s), He(1s2p), He(1s3s), He(1s3p), Ps(ls), Ps(2s), Ps(2p). Calculations are reported of rearrangement cross sections to Ps(ls), Ps(2s) and Ps(2p) states for incident positron energies up to 200 eV. The present partial cross sections are in good agreement with experimental results and a variational calculation in the Ore gap region.
dc.languageeng
dc.publisherIop Publishing Ltd
dc.relationJournal of Physics B: Atomic, Molecular and Optical Physics
dc.relation2.119
dc.relation0,850
dc.rightsAcesso restrito
dc.sourceWeb of Science
dc.titleClose-coupling calculations of positronium formation in positron-helium scattering
dc.typeArtículos de revistas


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