Variational calculation of positronium-helium-atom scattering length

dc.contributorUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:20:17Z
dc.date.available2014-05-27T11:20:17Z
dc.date.created2014-05-27T11:20:17Z
dc.date.issued2001-08-01
dc.identifierPhysical Review A. Atomic, Molecular, and Optical Physics, v. 64, n. 2, 2001.
dc.identifier1050-2947
dc.identifierhttp://hdl.handle.net/11449/66558
dc.identifier10.1103/PhysRevA.64.022702
dc.identifierWOS:000170297300047
dc.identifier2-s2.0-4244119367
dc.identifier2-s2.0-4244119367.pdf
dc.description.abstractA basis-set calculation scheme for S-waves Ps-He elastic scattering below the lowest inelastic threshold was formulated using a variational expression for the transition matrix. The scheme was illustrated numerically by calculating the scattering length in the electronic doublet state: a=1.0±0.1 a.u.
dc.languageeng
dc.relationPhysical Review A: Atomic, Molecular, and Optical Physics
dc.relation1,288
dc.rightsAcesso restrito
dc.sourceScopus
dc.subjectAtoms
dc.subjectElectrons
dc.subjectFermions
dc.subjectGreen's function
dc.subjectGround state
dc.subjectHelium
dc.subjectIntegration
dc.subjectMatrix algebra
dc.subjectNonlinear equations
dc.subjectPolynomials
dc.subjectVectors
dc.subjectElastic scattering
dc.subjectLegendre polynomials
dc.subjectPositronium
dc.subjectSchrodinger equation
dc.subjectSchwinger variational method
dc.subjectTransition matrix
dc.subjectWave functions
dc.subjectZero-energy elastic cross section
dc.subjectScattering
dc.titleVariational calculation of positronium-helium-atom scattering length
dc.typeArtículos de revistas


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