1997/06/04 by V. E. Lyubovitskij, Valery E. Lyubovitskij, E. Z. Lipartia +5
Physics and Astronomy · #Advanced Chemical Physics Studies #Atomic and Molecular Physics #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Nuclear physics research studies #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9706244
11 pages, LaTeX-file (elsart.sty)
arxiv created 1997/06/04 · openalex publication_date 1997/06/04 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The perturbative framework is developed for the calculation of the pi(+)pi(-) atom characteristics (energy level shift and lifetime) 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.