Light-Front Quark Model Analysis of Meson-Photon Transition Form Factor

Abstract

We discuss $({\pi }^0,\eta ,{\eta }^{\prime })\to {\gamma }^{\ast }\gamma$ transition form factors using the light-front quark model. Our discussion includes the analysis of the mixing angles for $\eta -{\eta }^{\prime }$. Our results for $Q^2{F}_{({\pi }^0,\eta ,{\eta }^{\prime })\to {\gamma }^{\ast }\gamma }(Q^2)$ show scaling behavior for high $Q^2$ consistent with pQCD predictions.

5 pages, Contribution to Light Cone 2015, September 21-25, 2015, Frascati, Italy

References in corpus (5)

• Measurement of gamma gamma* --> pi0 transition form factor at Belle
• Measurement of the pseudoscalar mixing angle and ${\eta }^{\prime }$ gluonium content with KLOE detector
• The $\eta$ and ${\eta }^{\prime }$ mesons from Lattice QCD
• Consistency of the light-front quark model with chiral symmetry in the pseudoscalar meson analysis
• Chimera distribution amplitudes for the pion and the longitudinally polarized $\rho$-meson

Cited by in corpus (3)

• Spacelike and timelike form factors for the $({\pi }^0,\eta ,{\eta }^{\prime })\to {\gamma }^{\ast }\gamma$ transitions in the light-front quark model
• The doubly virtual $({\pi }^0,\eta ,{\eta }^{\prime })\to {\gamma }^{\ast }{\gamma }^{\ast }$ transition form factors in the light-front quark model
• Pion observables calculated in Minkowski and Euclidean spaces with Ansätze for quark propagators