Detection of positron-atom bound states through resonant annihilation

Details Detection of positron-atom bound states through resonant annihilation Detection of positron-atom bound states through resonant annihilation

2010-07-23

arxiv.org/abs/1007.4033v3

Phys. Rev. Lett. 105, 203401 (2010)

Physics

Atomic Physics

5 pages, 1 figure; estimates of binding energies have been added

Scientific paper

10.1103/PhysRevLett.105.203401

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.

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