f1(1285) → e+e- decay and direct f1 production in e+e- collisions
Budker Institute of Nuclear Physics, Novosibirsk 630090, Russia
2 Novosibirsk State University, Novosibirsk 630090, Russia
a e-mail: firstname.lastname@example.org
Published online: 3 August 2018
The width of the f1(1285) → e+e+e- decay is calculated in the vector meson dominance model. The result depends on the relative phase between two coupling constants describing f1 → ρ0γ decay. The width Γ( f1 → e+e+e-) is estimated to be ≃ 0:07 - 0:19 eV. Direct f1 production in e+e+e- collisions is discussed, and the e+e+e- → f1 → a0π → ηππ cross section is calculated. Charge asymmetry in the e+e+e- → ηπ+π- reaction due to interference between e+e+e- → f1 and e+e+e- → ηρ0 amplitudes is studied.
© The Authors, published by EDP Sciences 2018
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