Vacuum polarization correction to the positronium decay rate

1994/11/17 by A. P. Burichenko, Burichenko, A. P., Dmitry Yu. Ivanov +2
Engineering · Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Muon and positron interactions and applications #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/9411322

10 pages, LaTeX

arxiv created 1994/11/17 · openalex publication_date 1994/11/17 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Corrections ∼ α² to the positronium decay rate, induced by one--loop vacuum polarization diagram, are calculated. Their relative values are 0.4468(3)(α/π)² for para- and 0.960(3)(α/π)² for orthopositronium.

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