Eur. Phys. J. A (2013) 49: 129
https://doi.org/10.1140/epja/i2013-13129-1

Regular Article - Theoretical Physics

The radiative ϕ → π⁰π⁰ γ decay

Department of Physics, Canakkale Onsekiz Mart University, Terzioglu Campus, 17100, Canakkale, Turkey

^* e-mail: akucukarslan@comu.edu.tr

Received: 3 May 2013
Revised: 11 September 2013
Accepted: 18 September 2013
Published online: 22 October 2013

Abstract

The f ₂(1270) tensor meson contribution to the ϕ → π⁰π⁰ γ decay is studied within the framework of a phenomenological approach. The higher resonance is combined with the process involving f ₀ scalar meson intermediate state and chiral loop. Then, we estimate the coupling constant g _ϕσγ considering the effect of the ϕ-ϕ mixing and a set of values of σ meson parameters M _σ and Γ _σ . And also we investigate the effect of the coupling constant g _ϕσγ for the ϕ → π⁰π⁰ γ decay considering different groups of the contributions. A comparison of our results with the ones existing in the literature is presented.