O(α2) corrections to the orthopositronium decay rate
- 1 June 1995
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 51 (6) , 4520-4525
- https://doi.org/10.1103/physreva.51.4520
Abstract
Relativistic O() corrections to the orthopositronium decay rate are calculated on the basis of a local quasipotential equation. We take into account the necessary contributions resulting from the amplitude of three-photon decay, the normalization condition of the wave function, and the second-order perturbation theory.
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