Positronium scattering from Kr and Xe at low energies

James Mitroy, Michael Bromley

    Research output: Contribution to journalArticleResearchpeer-review

    Abstract

    The stabilization fixed core stochastic variational method (FCSVM) was used to estimate the low-energy s-wave phase shifts for Ps scattering from Kr and Xe. As such, the results of calculations in the fixed core model for Xe were at variance with R-matrix calculation. The inclusion of the van der Waals interaction leads to substantial changes in the scattering length for both krypton and xenon.
    Original languageEnglish
    Pages (from-to)34502.1-34502.4
    JournalPhysical Review A - Atomic, Molecular, and Optical Physics
    Volume67
    Issue number3
    Publication statusPublished - 2003

    Fingerprint

    positronium
    krypton
    scattering
    xenon
    phase shift
    stabilization
    inclusions
    energy
    estimates
    interactions

    Cite this

    Mitroy, James ; Bromley, Michael. / Positronium scattering from Kr and Xe at low energies. In: Physical Review A - Atomic, Molecular, and Optical Physics. 2003 ; Vol. 67, No. 3. pp. 34502.1-34502.4.
    @article{226f90a8188e43c89b909af39795a794,
    title = "Positronium scattering from Kr and Xe at low energies",
    abstract = "The stabilization fixed core stochastic variational method (FCSVM) was used to estimate the low-energy s-wave phase shifts for Ps scattering from Kr and Xe. As such, the results of calculations in the fixed core model for Xe were at variance with R-matrix calculation. The inclusion of the van der Waals interaction leads to substantial changes in the scattering length for both krypton and xenon.",
    keywords = "Approximation theory, Calculations, Electron scattering, Hamiltonians, Krypton, Mathematical models, Matrix algebra, Polarization, Positrons, Random processes, Variational techniques, Xenon, Core polarization, Fixed core stochastic variational method, Hartree-Fock wave function, Positronium scattering, Atomic physics",
    author = "James Mitroy and Michael Bromley",
    year = "2003",
    language = "English",
    volume = "67",
    pages = "34502.1--34502.4",
    journal = "Physical Review A",
    issn = "1050-2947",
    publisher = "American Physical Society",
    number = "3",

    }

    Positronium scattering from Kr and Xe at low energies. / Mitroy, James; Bromley, Michael.

    In: Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 67, No. 3, 2003, p. 34502.1-34502.4.

    Research output: Contribution to journalArticleResearchpeer-review

    TY - JOUR

    T1 - Positronium scattering from Kr and Xe at low energies

    AU - Mitroy, James

    AU - Bromley, Michael

    PY - 2003

    Y1 - 2003

    N2 - The stabilization fixed core stochastic variational method (FCSVM) was used to estimate the low-energy s-wave phase shifts for Ps scattering from Kr and Xe. As such, the results of calculations in the fixed core model for Xe were at variance with R-matrix calculation. The inclusion of the van der Waals interaction leads to substantial changes in the scattering length for both krypton and xenon.

    AB - The stabilization fixed core stochastic variational method (FCSVM) was used to estimate the low-energy s-wave phase shifts for Ps scattering from Kr and Xe. As such, the results of calculations in the fixed core model for Xe were at variance with R-matrix calculation. The inclusion of the van der Waals interaction leads to substantial changes in the scattering length for both krypton and xenon.

    KW - Approximation theory

    KW - Calculations

    KW - Electron scattering

    KW - Hamiltonians

    KW - Krypton

    KW - Mathematical models

    KW - Matrix algebra

    KW - Polarization

    KW - Positrons

    KW - Random processes

    KW - Variational techniques

    KW - Xenon

    KW - Core polarization

    KW - Fixed core stochastic variational method

    KW - Hartree-Fock wave function

    KW - Positronium scattering

    KW - Atomic physics

    M3 - Article

    VL - 67

    SP - 34502.1-34502.4

    JO - Physical Review A

    JF - Physical Review A

    SN - 1050-2947

    IS - 3

    ER -