Vacuum polarization correction to the positronium decay rate

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Corrections $\sim α^2 $ 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.
10 pages, LaTeX

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High Energy Physics - Phenomenology

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http://salesiana.dossiersoluciones.com/handle/123456789/45363

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/hep-ph/9411322
 http://arxiv.org/abs/hep-ph/9411322

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arXiv