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Chiral loop and LsigmaM predictions for phi->pi0etagamma

R. Escribano
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Abstract

A prediction for the contributions of chiral loops and the L$σ$M model to the radiative $ϕ\toπ^0ηγ$ decay mode is presented. The L$σ$M is used as an appropriate framework for describing the pole effects of the $a_0(980)$ scalar resonance. As a result, a better agreement with present available data is achieved for the higher part of the $π^0η$ invariant mass spectrum. For the branching ratio, a value of $B(ϕ\toπ^0ηγ)=(0.75$--$0.95)\times 10^{-4}$ is found.

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R. Escribano. 2000-12-05. Chiral loop and LsigmaM predictions for phi->pi0etagamma. https://arxiv.org/abs/hep-ph/0012050

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