gamma^* gamma^* -> pi^0 Form Factor from AdS/QCD

Abstract

The recently measured $\gamma {\gamma }^{\ast }\to {\pi }^0$ anomalous form factor is analyzed using the $D4/D8\overline{D8}$ holographic approach to QCD. The half-on-shell transition form factor is vector meson dominated and is shown to exactly tie to the pion form factor. The holographic result compares well with the data for the lowest vector resonance.

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Cited by in corpus (10)

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• Two-photon form factors of the pi0, eta and eta-prime mesons in the chiral theory with resonances
• Transition Form Factors and Mixing of Pseudoscalar Mesons from Anomaly Sum Rule
• Pseudoscalar transition form factors and the hadronic light-by-light contribution to the anomalous magnetic moment of the muon from holographic QCD
• ${\pi }^0\to {\gamma }^{\ast }\gamma$ transition form factor within Light Front Quark Model
• Pion to photon transition form factors with basis light-front quantization
• Influence of confining gluon configurations on the $P\to {\gamma }^{\ast }\gamma$ transition form factors
• Photon-to-pion transition form factor and pion distribution amplitude from holographic QCD
• Study of pesudoscalar transition form factors within light front quark model
• Pion-Photon Transition Form Factor and Pion Distribution Amplitude in QCD: Facing the Enigmatic Behavior of the BaBar Data