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arXiv · 0712.0304

The decay ϕ-> f_0(980) γand the process e^+e^- -> ϕf_0(980)

Yu. M. Bystritskiy·M. K. Volkov·E. A. Kuraev·E. Bartos·M. Secansky
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Abstract

The decay ϕ-> f_0(980) γand process e^+e^- -> ϕf_0(980) are considered within the local Nambu-Jona-Lasinio model. In the amplitudes of these processes contributions of s-quark and kaon loops are taken into account. The kaon loop gives a dominant contribution. Our estimation for the decay width of ϕ-> f_0 γis in satisfactory agreement with recent experimental data. This allows us to make some predictions for cross sections of the process e^+e^- -> γ^* -> ϕf_0 which can be tested in the C-τfactory. The total and differential cross sections of this process are calculated and presented in the figures.

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Yu. M. Bystritskiy, M. K. Volkov, E. A. Kuraev, E. Bartos, M. Secansky. 2007-12-09. The decay ϕ-> f_0(980) γand the process e^+e^- -> ϕf_0(980). https://doi.org/10.1103/physrevd.77.054008

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