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

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dc.contributor.authorChaudhuri, P.
dc.contributor.authorAdhikari, S. K.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T14:07:25Z
dc.date.available2014-05-20T14:07:25Z
dc.date.issued1998-07-14
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.en
dc.description.affiliationUniv Estadual Paulista, Inst Fis Teor, BR-405900 São Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Inst Fis Teor, BR-405900 São Paulo, Brazil
dc.format.extent3057-3063
dc.identifierhttp://dx.doi.org/10.1088/0953-4075/31/13/022
dc.identifier.citationJournal of Physics B-atomic Molecular and Optical Physics. Bristol: Iop Publishing Ltd, v. 31, n. 13, p. 3057-3063, 1998.
dc.identifier.doi10.1088/0953-4075/31/13/022
dc.identifier.issn0953-4075
dc.identifier.lattes8031087349809439
dc.identifier.urihttp://hdl.handle.net/11449/23667
dc.identifier.wosWOS:000075028300022
dc.language.isoeng
dc.publisherIop Publishing Ltd
dc.relation.ispartofJournal of Physics B: Atomic, Molecular and Optical Physics
dc.relation.ispartofjcr2.119
dc.relation.ispartofsjr0,850
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleClose-coupling calculations of positronium formation in positron-helium scatteringen
dc.typeArtigo
dcterms.licensehttp://iopscience.iop.org/page/copyright
dcterms.rightsHolderIop Publishing Ltd
dspace.entity.typePublication
unesp.author.lattes8031087349809439
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Física Teórica (IFT), São Paulopt

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São Paulo - IFT - Instituto de Física Teórica