The longitudinal and transverse distributions of the pion wavefunction from the present experimental data on the pion-photon transition form factor

Tao Zhong, Xing-Gang Wu, Tao Huang

It is noted that the low-energy behavior of the pion-photon transition form factor $F_{\pi \gamma }(Q^2)$ is sensitive to the transverse distribution of the pion wavefunction, and its high-…