Chiral loops and a_0(980) exchange in ϕ->π^0ηγ

A. Bramon, R. Escribano, J. L. Lucio M. +2

The radiative $\varphi \to {\pi }^0\eta \gamma$ decay is discussed emphasizing the effects of the $a_0$(980) scalar resonance which dominates the high values of the ${\pi }^0\eta$ invariant mass spectrum. In it…