Positronium scattering from Kr and Xe at low energies

James Mitroy; Michael Bromley

Positronium scattering from Kr and Xe at low energies

James Mitroy, Michael Bromley

Research output: Contribution to journal › Article › peer-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 language	English
Pages (from-to)	34502.1-34502.4
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	67
Issue number	3
Publication status	Published - 2003

Cite this

@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",

}

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 -

Positronium scattering from Kr and Xe at low energies

Abstract

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