Coupled-channel analysis of the process $\gamma \gamma \to {\pi }^0{\pi }^0$

Yury S. Surovtsev, Petr Bydžovský, Thomas Gutsche +3

We study the process $\gamma \gamma \to {\pi }^0{\pi }^0$ involving the principle mechanisms, the structure of its cross section and the role of individual isoscalar-tensor resonances in the saturation o…