Order α ln(1/α) Corrections to Positronium Decays

Abstract

The logarithmically enhanced α3 ln(1/α) corrections to the paraand orthopositronium decay widths are calculated in the framework of dimensionally regularized nonrelativistic quantum electrodynamics. In the case of parapositronium, the correction is negative, approximately doubles the effect of the leading logarithmic α3 ln(1/α) one, and is comparable to the… (More)

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Cite this paper

@inproceedings{Kniehl2000OrderL, title={Order α ln(1/α) Corrections to Positronium Decays}, author={Bernd A. Kniehl and Alexander Penin}, year={2000} }