Detecting Positron-Atom Bound States through Resonant Annihilation
Abstract
A method is proposed for detecting positron-atom bound states by observing enhanced positron annihilation due to electronic Feshbach resonances at electron-volt energies. The method is applicable to a range of open-shell transition-metal atoms which are likely to bind the positron: Fe, Co, Ni, Tc, Ru, Rh, Sn, Sb, Ta, W, Os, Ir, and Pt. Estimates of their binding energies are provided.
- Publication:
-
Physical Review Letters
- Pub Date:
- November 2010
- DOI:
- arXiv:
- arXiv:1007.4033
- Bibcode:
- 2010PhRvL.105t3401D
- Keywords:
-
- 36.10.-k;
- 34.80.Lx;
- 34.80.Uv;
- 78.70.Bj;
- Exotic atoms and molecules;
- Electron-ion recombination and electron attachment;
- Positron scattering;
- Positron annihilation;
- Physics - Atomic Physics
- E-Print:
- 5 pages, 1 figure