Theoretical analysis of the $\gamma {\gamma }^{(\ast )}\to {\pi }^0\eta$ process

Oleksandra Deineka, Igor Danilkin, Marc Vanderhaeghen

The theoretical analysis of the $\gamma \gamma \to {\pi }^0\eta$ process is presented within the energy range up to 1.4 GeV. The $S$-wave resonance $a_0(980)$ is described involving the coupled channe…