Positron annihilation in resonant states of the He2+ + e - + e+ system

Yukio Toya, Yasushi Kino, Hiroshi Kudo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

We study positron annihilation in the resonant state of an exotic three-body system (He2+ + e- + e+) by artificially changing a helium nuclear charge and a positron mass. The Ps polarization and non-adiabatic effects on the annihilation are investigated for the lowest broad resonance having an energy width of 3.52 eV. The polarization of Ps due to the nuclear charge and the non-adiabatic effect of the positron make the resonance unstable, and reduce the positron annihilation rate.

Original languageEnglish
Title of host publicationPositron Annihilation
Subtitle of host publicationProceedings of the 13th International Conference on Positron Annihilation, ICPA-13
EditorsToshio Hyodo, Haruo Saito, Yoshinori Kobayashi, Yasuyuki Nagashima
PublisherTrans Tech Publications Ltd
Pages446-448
Number of pages3
ISBN (Print)9780878499366
Publication statusPublished - 2004 Jan 1
EventPositron Annihilation: Proceedings of the 13th International Conference on Positron Annihilation, ICPA-13 - Kyoto, Japan
Duration: 2003 Sep 72003 Sep 12

Publication series

NameMaterials Science Forum
Volume445-446
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Other

OtherPositron Annihilation: Proceedings of the 13th International Conference on Positron Annihilation, ICPA-13
CountryJapan
CityKyoto
Period03/9/703/9/12

Keywords

  • Few-Body Calculations
  • Positron Annihilation
  • Positronic Atom
  • Resonant State

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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