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

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.

8 pages, LaTeX-file

Cited by in corpus (9)

• Virtual Photons in Low Energy pi-pi Scattering
• Decays of the pi+ pi- atom
• pi(-)p atom in ChPT: strong energy-level shift
• (Pi+Pi-) Atom in Chiral Perturbation Theory
• Chiral perturbation theory
• Non-Relativistic Pion Interactions and the Pionium Lifetime
• Hadronic Atoms
• Hadronic potentials from effective field theories
• Energy and decay width of the pi-K atom