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Perturbative framework for the pi+ pi- atom

Valery E. Lyubovitskij
(
- Dubna, JINR and
- Tomsk State U.
)
,
E.Z. Lipartia
(
- Dubna, JINR and
- Tbilisi State U.
)
,
A.G. Rusetsky
(
- Dubna, JINR and
- Tbilisi State U.
)

1997

8 pages

Published in:

JETP Lett. 67 (1997) 783-788,
Pisma Zh.Eksp.Teor.Fiz. 66 (1997) 747

e-Print:

hep-ph/9801215 [hep-ph]

DOI:

10.1134/1.567598

Report number:

JINR-E2-97-313

View in:

ADS Abstract Service

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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.

Note:

8 pages, LaTeX-file

pi+ pi-: atom
Bethe-Salpeter equation
perturbation theory
bound state: lifetime

References(16)

Figures(0)

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