Scalar $a_0(980)$ meson in $\varphi \to {\pi }^0\eta \gamma$ decay

Abstract

We study the radiative decay $\varphi \to {\pi }^0\eta \gamma$ within the framework of a phenomenological approach in which the contributions of $\rho$-meson, chiral loop and $a_0$-meson are considered. We analyze the interference effects between different contributions and utilizing the experimental branching ratio and invariant ${\pi }^0\eta$ mass spectrum for $\varphi \to {\pi }^0\eta \gamma$ decay we estimate the branching ratio of $\varphi \to a_0\gamma$ decay.

18 pages, RevTeX, 6 PS figures. A rounding-off error in printing the horizontal axes of figures resulting from the computer program Grapher is corrected. Journal Ref.: J. Phys. G: Nucl. Part. Phys. 28 (2002) 2783-2793

References in corpus (5)

• A low-lying scalar meson nonet in a unitarized meson model
• Analysis of the nature of the $\varphi \to \gamma \pi \eta$ and $\varphi \to \gamma {\pi }^0{\pi }^0$ decays
• Analysis of the nature of the $\varphi \to \gamma \pi \eta$ and $\varphi \to \gamma {\pi }^0{\pi }^0$ decays
• Interference effects in the decay ϕ\to π^{0}π^{0}γand the coupling constant g_{ϕσγ}
• The $\varphi a_0\gamma$- and $\varphi \sigma \gamma$-vertices in light cone QCD

Cited by in corpus (6)

• Chiral approach to phi radiative decays
• Scalar and vector meson exchange in V->P0P0gamma decays
• Potential higher radial excitations in the light pseudoscalar meson family
• Scalar mesons in radiative ϕ\to K^0\bar{K}^0γdecay
• The $a_0{K}^{+}{K}^{-}$-vertex in light cone QCD sum rules
• Different Contributions in omega pi0etagamma and rho pi0etagamma decays