$\pi^0\to\gamma^*\gamma$ transition form factor within Light Front Quark   Model
  We study the transition form factor of $\pi^0\to\gamma^* \gamma$ as a function of the momentum transfer $Q^2$ within the light-front quark model (LFQM). We compare our result with the experimental data by BaBar as well as other calculations based on the LFQM in the literature. We show that our predicted form factor fits well with the experimental data, particularly those at the large $Q^2$ region. 
Chong-Chung Lih and Chao-Qiang Geng
hep-ph hep-ex nucl-th