Effect of electron correlation on positronium formation in positron-helium scattering

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dc.contributor.authorChaudhuri, P. [UNESP]
dc.contributor.authorAdhikari, S. K. [UNESP]
dc.contributor.authorTalukdar, B.
dc.contributor.authorBhattacharyya, S.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionVisva Bharati University
dc.date.accessioned2014-05-20T14:06:23Z
dc.date.available2014-05-20T14:06:23Z
dc.date.issued1999-02-01
dc.description.abstractA three-parameter correlated wave function for the helium ground state is used to study the scattering reaction e(+) + He --> He+ + Ps, where Ps stands for positronium atom. An exact analytical expression is constructed for the first Born scattering amplitude for Ps formation from helium. Based on this numerical results are presented for both differential and total cross-sections. It is demonstrated that the inner electronic correlation of the target atom plays a crucial role in explaining the discrepency between theory and experiment.en
dc.description.affiliationUniv Estadual Paulista, Inst Fis Teor, BR-01405900 São Paulo, Brazil
dc.description.affiliationVisva Bharati Univ, Dept Phys, Santiniketan 731235, W Bengal, India
dc.description.affiliationUnespUniv Estadual Paulista, Inst Fis Teor, BR-01405900 São Paulo, Brazil
dc.format.extent217-220
dc.identifierhttp://dx.doi.org/10.1007/s100530050247
dc.identifier.citationEuropean Physical Journal D. New York: Springer Verlag, v. 5, n. 2, p. 217-220, 1999.
dc.identifier.doi10.1007/s100530050247
dc.identifier.issn1434-6060
dc.identifier.lattes8031087349809439
dc.identifier.scopus2-s2.0-0033075968
dc.identifier.urihttp://hdl.handle.net/11449/23298
dc.identifier.wosWOS:000078857100010
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofEuropean Physical Journal D
dc.relation.ispartofjcr1.393
dc.relation.ispartofsjr0,387
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleEffect of electron correlation on positronium formation in positron-helium scatteringen
dc.typeArtigo
dcterms.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dcterms.rightsHolderSpringer
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