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ISSN - 15507998, Physical Review D - Particles, Fields, Gravitation and Cosmology, 1997, vol. 55, p. 2672-2682

Interference in the reaction e+e-→γπ+π- and the search for the decay φ→γf0→γπ+π-

Achasov N. N., Gubin V. V., Solodov E. P.

We describe the interference between amplitudes e+e-→ρ→γπ+π - and e+e-→φ→γf 0→γπ+π-, where the f0 meson is considered in the framework of the four-quark model and the model of the scalar KK̄ molecule. The general expressions for the differential cross section with the radiative corrections and two angle cuts are given. The interference patterns are obtained in the spectrum of the differential cross section by the energy of the photon and in the full cross section by the energy of the beams.