Effect of electron exchange in positronium-hydrogen scattering

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dc.contributor.authorBiswas, P. K.
dc.contributor.authorAdhikari, S. K.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T14:07:26Z
dc.date.available2014-05-20T14:07:26Z
dc.date.issued1998-07-28
dc.description.abstractThe elastic and inelastic scattering of ortho-positronium (Ps) by the hydrogen atom have been investigated using a three-Ps-state close-coupling approximation. The higher (n greater than or equal to 3) excitations and ionization of the Ps atom are treated within the framework of the Born approximation. In both cases the effect of electron exchange has been included by a parameter-free nonlocal model potential derived from an antisymmetrization of the wavefunction followed by the removal of nonorthogonality. Calculations are reported of scattering lengths,phase shifts, and of elastic, Ps excitation, and total cross sections. The trend of present target elastic total cross section agrees qualitatively with available experimental results on Ps-impact scattering.en
dc.description.affiliationUniv Estadual Paulista, Inst Fis Teor, BR-01405900 São Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Inst Fis Teor, BR-01405900 São Paulo, Brazil
dc.format.extent3147-3154
dc.identifierhttp://dx.doi.org/10.1088/0953-4075/31/14/013
dc.identifier.citationJournal of Physics B-atomic Molecular and Optical Physics. Bristol: Iop Publishing Ltd, v. 31, n. 14, p. 3147-3154, 1998.
dc.identifier.doi10.1088/0953-4075/31/14/013
dc.identifier.issn0953-4075
dc.identifier.lattes8031087349809439
dc.identifier.urihttp://hdl.handle.net/11449/23673
dc.identifier.wosWOS:000075325700013
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.titleEffect of electron exchange in positronium-hydrogen scatteringen
dc.typeArtigo
dcterms.licensehttp://iopscience.iop.org/page/copyright
dcterms.rightsHolderIop Publishing Ltd
unesp.author.lattes8031087349809439
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Física Teórica (IFT), São Paulopt

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