alpha^2 corrections to parapositronium decay: a detailed description

Preprint

17 July 2000

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ph/9910488

Abstract

We present details of our recent calculation of alpha^2 corrections to the parapositronium decay into two photons. These corrections are rather small and our final result for the parapositronium lifetime agrees well with the most recent measurement. Implications for orthopositronium decays are briefly discussed.

Keywords

PARAPOSITRONIUM LIFETIME
ORTHOPOSITRONIUM DECAYS
PARAPOSITRONIUM DECAY
RECENT CALCULATION
LIFETIME AGREES
CORRECTIONS
PHOTONS

All Related Versions

Version 1, 1999-10-26, ArXiv
Version 2, 2000-07-17, ArXiv
Published version: Physical Review A, 61 (5), 052502.

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