### Abstract

Original language | English |
---|---|

Pages (from-to) | 173001-173005 |

Number of pages | 5 |

Journal | Physical Review Letters |

Volume | 98 |

Issue number | 17 |

Publication status | Published - 2007 |

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### Cite this

*Physical Review Letters*,

*98*(17), 173001-173005.

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*Physical Review Letters*, vol. 98, no. 17, pp. 173001-173005.

**Generating phase shifts from pseudostate energy shifts.** / Mitroy, James; Bromley, Michael.

Research output: Contribution to journal › Article › Research › peer-review

TY - JOUR

T1 - Generating phase shifts from pseudostate energy shifts

AU - Mitroy, James

AU - Bromley, Michael

PY - 2007

Y1 - 2007

N2 - A simple way to generate low energy phase shifts for elastic scattering using bound-state calculations is postulated, validated, and applied to the problem of e+-Mg scattering. The essence of the method is to use the energy shift between a small reference calculation and the largest possible calculation of the lowest energy pseudostate to tune a semiempirical optical potential. The =1 partial wave for e+-Mg scattering is predicted to have a shape resonance at an energy of about 0.13 eV. The value of Zeff at the center of the resonance is about 1500. � 2007 The American Physical Society.

AB - A simple way to generate low energy phase shifts for elastic scattering using bound-state calculations is postulated, validated, and applied to the problem of e+-Mg scattering. The essence of the method is to use the energy shift between a small reference calculation and the largest possible calculation of the lowest energy pseudostate to tune a semiempirical optical potential. The =1 partial wave for e+-Mg scattering is predicted to have a shape resonance at an energy of about 0.13 eV. The value of Zeff at the center of the resonance is about 1500. � 2007 The American Physical Society.

KW - Elastic scattering

KW - Electromagnetic wave scattering

KW - Magnesium

KW - Optical properties

KW - Phase shift

KW - Bound state calculations

KW - Pseudostate energy shifts

KW - Shape resonance

KW - Electron energy levels

M3 - Article

VL - 98

SP - 173001

EP - 173005

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 17

ER -