Strong interaction between kaons in the reactions e+ e- --> K+ K- gamma and e+ e- --> K0 K0bar gamma

Abstract

A theoretical model of the reactions e+ e- --> K+ K- gamma and e+ e- --> K0 K0bar gamma has been derived. The strong interaction between kaons is taken into account using a general form of the K Kbar scattering amplitude. It is shown that some models formulated in the past are particular cases of the present approach. The formulae for the K Kbar effective mass dependence of the differential cross section as well as for the angular kaon and photon distributions and for the branching fractions of the phi(1020)--> K+ K- gamma and phi(1020)--> K0 K0bar gamma decays have been obtained. We present numerical results for the functions entering into transition amplitudes, K Kbar effective mass distributions, total cross sections, and branching fractions. Finally, the model is generalized to treat other reactions with two pseudoscalar mesons accompanying a photon in the final state.

arXiv comment17 pages, 7 figures

References in corpus (43)

• Glueballs, Hybrids, Multiquarks. Experimental facts versus QCD inspired concepts
• Meson-Meson interaction in a non-perturbative chiral approach
• A low-lying scalar meson nonet in a unitarized meson model
• Resonances in $J/\psi \to \varphi {\pi }^{+}{\pi }^{-}$ and $\varphi K^{+}{K}^{-}$
• Scalar Mesons in $\varphi$ Radiative Decay: their implications for spectroscopy and for studies of CP-violation at $\varphi$ factories
• Study of the $\varphi$ decays into ${\pi }^0{\pi }^0\gamma$ and $\eta {\pi }^0\gamma$ final states
• Modeling the Pion and Kaon Form Factors in the Timelike Region
• The $\varphi (1020)\to {\pi }^0{\pi }^0\gamma$ decay
• Separation of S- wave pseudoscalar and pseudovector amplitudes in pi^- p---> pi^+ pi^- n reaction on polarized target
• Radiative decay of rho^0 and phi mesons in a chiral unitary approach
• The $\varphi \to \eta {\pi }^0\gamma$ decay
• Relativistic Effects in the Scalar Meson Dynamics
• First observation of Bs -> J/psi f0(980) decays
• Production of scalar $K\bar{K}$ molecules in $\varphi$ radiative decays
• Study of the decay phi--> f0(980)g --> pi+pi-g with the KLOE detector
• The radiative decay phi - gamma pi pi in a coupled channel model and the structure of f0(980)
• Dalitz plot analysis of e+ e- --> pi0 pi0 gamma events at SQRT(s) ~ M(phi) with the KLOE detector
• Study of the a_0(980) meson via the radiative decay phi->eta pi^0 gamma with the KLOE detector
• The phi --> gamma K0 bar(K0) Decay
• The radiative decays $\varphi \to \gamma a_0/f_0$ in the molecular model for the scalar mesons
• Three channel model of meson-meson scattering and scalar meson spectroscopy
• Finite width effects in ϕradiative decays
• The e+ e- -> P1 P2 gamma processes close to the Phi peak: toward a model-independent analysis
• Interference in the reaction $e^{+}{e}^{-}\to \gamma {\pi }^{+}{\pi }^{-}$ and the final state interaction
• Charge asymmetry and radiative phi decays
• First observation of the $\varphi \to {\pi }^{+}{\pi }^{-}\gamma$ decay
• Towards a model independent determination of the phi -> f_0 - gamma coupling
• Chiral approach to phi radiative decays
• The production of K+K- pairs in proton-proton collisions at 2.83 GeV
• Chiral loops and a_0(980) exchange in ϕ->π^0ηγ
• Search for $a_0(980)$ and $f_0(980)$ mesons in $\varphi \to \gamma K\bar{K}$
• Scalar and vector meson exchange in V->P0P0gamma decays
• Coupled-channel effects in the pp -> ppK+K- reaction
• Coupled channel study of a0 resonances
• Combined analysis of the $K^{+}{K}^{-}$ interaction using near threshold $pp\to pp{K}^{+}{K}^{-}$ data
• Low Energy Parameters of the KK and Pipi Scalar-Isoscalar Interactions
• e+e- annihilation to (pi0 pi0 gamma) and (pi0 eta gamma) as a source of information on scalar and vector mesons
• Properties of the a0 resonances
• Scalar mesons in radiative ϕ\to K^0\bar{K}^0γdecay
• New formula for a resonant scattering near an inelastic threshold
• Theoretical studies of the reaction e+ e- --> K+ K- gamma
• Latest studies on the reaction e+ e- --> K + K- gamma
• New parameterization of the resonant production amplitudes near an inelastic threshold