High-statistics study of neutral-pion pair production in two-photon collisions

S. Uehara

The differential cross sections for the process $\gamma \gamma \to {\pi }^0{\pi }^0$ have been measured in the kinematic range 0.6 GeV $<W<4.1$ GeV, $|\cos {\theta }^{\ast }|<0.8$ in energy and pion scattering an…