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dc.contributor.authorChaudhuri, P.-
dc.contributor.authorAdhikari, S. K.-
dc.contributor.authorTalukdar, B.-
dc.contributor.authorBhattacharyya, S.-
dc.identifier.citationEuropean Physical Journal D. New York: Springer Verlag, v. 5, n. 2, p. 217-220, 1999.-
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.sourceWeb of Science-
dc.titleEffect of electron correlation on positronium formation in positron-helium scatteringen
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionVisva Bharati University-
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.rights.accessRightsAcesso restrito-
dc.relation.ispartofEuropean Physical Journal D-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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