Vector Meson Dominance Model for Radiative Decays Involving Light Scalar Mesons

Abstract

We study a vector dominance model which predicts a fairly large number of currently interesting decay amplitudes of the types S -> γγ, V -> S γand S -> V γ, where S and V denote scalar and vector mesons, in terms of three parameters. As an application, the model makes it easy to study in detail a recent proposal to boost the ratio Gamma(phi -> f_0 gamma) / Gamma(phi -> a_0 gamma) by including the isospin violating a_0 - f_0 mixing. However we find that this effect is actually small in our model.

4 pages, 1 figure, REVTeX. Table I and paragraph on application of model to study effect of a_0 - f_0 mixing revised

References in corpus (3)

• Unitarized pseudoscalar meson scattering amplitudes in three flavor linear sigma models
• Large Isospin mixing in phi radiative decay and the spatial size of the f0(980)- a0(980) meson
• Fate of Vector Dominance in the Effective Field Theory

Cited by in corpus (51)

• Hidden gauge formalism for the radiative decays of axial-vector mesons
• Isosinglet Scalar Mesons Below 2 GeV and the Scalar Glueball Mass
• Isospin breaking decay $\eta (1405)\to f_0(980){\pi }^0\to 3\pi$
• Possibility of measuring a0(980)-f0(980) mixing from J/psi -> phi a0
• Mass Uncertainties of f0(600) and f0(1370) and their Effects on Determination of the Quark and Glueball Admixtures of the I=0 Scalar Mesons
• D_s (2317) as a four-quark state in QCD sum rules
• Contribution of higher nucleon resonances to K*Λ photoproduction
• Study a0(980)-f0(980) mixing from a0(980) -> f0(980) transition
• Insights on scalar mesons from their radiative decays
• K* photoproduction off the nucleon: gamma N --> K* Lambda
• Scalar kappa meson in K* photoproduction
• Finite width effects in ϕradiative decays
• Proposed Search for $a_0^0(980)-f_0(980)$ Mixing in Polarization Phenomena
• Nucleon resonances in $\gamma p\to K^{\ast +}\Lambda$
• Meson loops in the $f_0(980)$ and $a_0(980)$ radiative decays into $\rho$, $\omega$
• Effects of $\Delta (1905)5/2^{+}$ on $K^{\ast }\Sigma$ photoproduction
• Chiral approach to phi radiative decays
• ϕK^{+}K^{-} production in electron-positron annihilation
• Electron-positron annihilation into phi f_{0}(980) and clues for a new 1^{--} resonance
• Effects of $N(2000)5/2^{+}$, $N(2060)5/2^{-}$, $N(2120)3/2^{-}$, and $N(2190)7/2^{-}$ on $K^{\ast }\Lambda$ photoproduction
• Stationary phase corrections in the process of bosonization of multi-quark interactions
• Decay of light scalar mesons into vector-photon and into pseudoscalar mesons
• Manifestation of the $a_0^0(980)-f_0(980)$ mixing in the reaction ${\pi }^{-}p\to \eta {\pi }^{0}n$ on a polarized target
• Long distance expansion for the NJL model with SU(3) and U_A(1) breaking
• K*Sigma photoproduction off the proton target with baryon resonances
• Tensor Glueball Photoproduction and Decay
• Effects of light scalar mesons in $\eta \to 3\pi$ decay
• Mechanisms of the isospin-breaking decay $f_1(1285)\to f_0(980){\pi }^0\to {\pi }^{+}{\pi }^{-}{\pi }^0$
• Radiative $\varphi$ decays with derivative interactions
• Chiral Nonet Mixing in ${\eta }^{\prime }\to \eta \pi \pi$ Decay
• Discovery potential for charmonium-like state Y(3940) by the meson photoproduction
• Radiative decays with light scalar mesons and singlet-octet mixing in ChPT
• Strong isospin symmetry breaking in light scalar meson production
• Probing charmonium-like state $X(3915)$ through meson photoproduction
• Role of $\sigma$ exchange in the $\gamma p\to \varphi p$ process and scaling with the $f_1$ axial vector meson from a Reggeized model
• Probing the substructure of $f_0(1370)$
• Radiative Decays Involving $f_0(980)$ and $a_0(980)$ and Mixing Between Low and High Mass Scalar Mesons
• Proximity of $f_0(1500)$ and $f_0(1710)$ to the scalar glueball
• Two photon decay of neutral scalars below 1.5 GeV in a chiral model for bar{q}q and bar{q}bar{q}qq states
• Mixing among lowest-lying scalar mesons and scalar glueball
• Features of $\omega$ photoproduction off nucleon target at forward angles : Dominance of $\pi$ exchange with Regge cuts and scaling of differential cross sections
• Chiral Nonet Mixing in $\pi K$ Scattering
• Regge approach to the reaction of $\gamma N\to K^{\ast }\Lambda$
• QCD sum rule study on the $f_0(980)$ structure as a pure $K\bar{K}$ bound state
• Connections between chiral Lagrangians and QCD sum-rules
• Chiral Nonet Mixing in $\pi \eta$ Scattering
• Linear Sigma Model predictions for V->Sgamma and S->Vgamma decays
• Radiative decays with scalar mesons a0(980) and f0(980) in Resonance Chiral Theory
• Role of resonances in rho^0 -> pi^+ pi^- gamma
• Insights into $Q^2{\bar{Q}}^2$ states from an effective perspective
• The impact of $a_0^0(980)-f_0(980)$ mixing on the localized $CP$ violations of the $B^{-}\to K^{-}{\pi }^{+}{\pi }^{-}$ decay