In this research we analyzed the processes of J/ψ → ϕf0(980) decay by calculating of three amplitude contributions as the electromagnetic (EM) contribution, short-distance (SD) contribution from the \(c\bar c\) annihilation at the wave function origin, and long-distance (LD) contribution from the open charm effects. We obtained the values of these contributions and calculated the branching ratio of this decay.
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Asadi, A., Mehraban, H. Analysis of J/ψ → ϕf0(980) Decay. Phys. Part. Nuclei Lett. 15, 576–580 (2018). https://doi.org/10.1134/S1547477118060031
- branching ratio