Detection of positron-atom bound states through resonant annihilation

V. A. Dzuba; V. V. Flambaum; G. F. Gribakin

doi:10.1103/physrevlett.105.203401

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arXiv · 1007.4033

Detection of positron-atom bound states through resonant annihilation

V. A. Dzuba·V. V. Flambaum·G. F. Gribakin

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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.

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V. A. Dzuba, V. V. Flambaum, G. F. Gribakin. 2010-09-23. Detection of positron-atom bound states through resonant annihilation. https://doi.org/10.1103/physrevlett.105.203401

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