Bound states of positrons and neutral atoms
- School of Physics, University of New South Wales, Sydney 2052 (Australia)
We use many-body perturbation theory to examine the interaction of positrons with atoms. Our calculations predict positron {ital s}-type bound states with binding energies 0.87, 0.23, 0.35, and 0.045 eV for Mg, Zn, Cd, and Hg atoms, respectively. This binding is due to the positron-atom polarization potential and virtual positronium formation. A simple criterion is used to find other atoms that are likely to form bound states with positrons. Among the most probable candidates are Ti, V, Cr, Mn, Zr, Nb, and Mo.
- OSTI ID:
- 147821
- Journal Information:
- Physical Review A, Journal Name: Physical Review A Journal Issue: 6 Vol. 52; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
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