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arXiv · hep-ph/9801215

Perturbative framework for the pi(+)pi(-) atom

V. E. Lyubovitskij·E. Z. Lipartia·A. G. Rusetsky
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Abstract

The perturbative framework is developed for the calculation of the pi(+)pi(-) atom characteristics on the basis of the field-theoretical Bethe-Salpeter approach. A closed expression for the first-order correction to the pi(+)pi(-) atom lifetime has been obtained.

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V. E. Lyubovitskij, E. Z. Lipartia, A. G. Rusetsky. 1998-01-06. Perturbative framework for the pi(+)pi(-) atom. https://doi.org/10.1134/1.567598

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