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

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.

13 pages, 5 figures, some errors in formulae are corrected and a few references to new papers added

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• Scalar and vector meson exchange in V->P0P0gamma decays
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Cited by in corpus (11)

• The Y(2175) State in the QCD Sum Rule
• A possible partner state of the $Y(2175)$
• ϕK^{+}K^{-} production in electron-positron annihilation
• Production of $\omega {\pi }^0$ pair in electron-positron annihilation
• Radiative $\varphi$ decays with derivative interactions
• 2γ-decays of scalar mesons (σ(600), f_0(980) and a_0(980)) in the Nambu-Jona-Lasinio model
• Radiative decays of radially excited mesons ${{\pi }^0}^{\prime }$, ${{\rho }^0}^{\prime }$, ${\omega }^{\prime }$ in NJL model
• Two photon decay and photoproduction of radial excitation of pion ${\pi }_0^{\prime }$
• Is there an isovector companion of the X(2175)?
• Radiative decays of pseudoscalar (P) and vector (V) mesons and the process e^+e^- \to η' ρ
• Pion Polarizability in the NJL model and Possibilities of its Experimental Studies in Coulomb Nuclear Scattering