Interference in the reaction e{sup +}e{sup {minus}}{r_arrow}{gamma}{pi}{sup +}{pi}{sup {minus}} and the search for the decay {phi}{r_arrow}{gamma}f{sub 0}{r_arrow}{gamma}{pi}{sup +}{pi}{sup {minus}}
- Laboratory of Theoretical Physics, S. L. Sobolev Institute for Mathematics, Novosibirsk-90, 630090 (Russia)
We describe the interference between amplitudes e{sup +}e{sup {minus}}{r_arrow}{rho}{r_arrow}{gamma}{pi}{sup +}{pi}{sup {minus}} and e{sup +}e{sup {minus}}{r_arrow}{phi}{r_arrow}{gamma}f{sub 0}{r_arrow}{gamma}{pi}{sup +}{pi}{sup {minus}}, where the f{sub 0} meson is considered in the framework of the four-quark model and the model of the scalar K{bar K} 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. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 467517
- Journal Information:
- Physical Review, D, Journal Name: Physical Review, D Journal Issue: 5 Vol. 55; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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