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arXiv · 1005.3173

Pion Distribution Amplitude and Photon-to-Pion Transition Form Factor in QCD

Alexander P. Bakulev·S. V. Mikhailov·N. G. Stefanis
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Abstract

We discuss the status of the pion distribution amplitude (DA) in connection with QCD sum rules and experimental data on the $\gamma^*\gamma^\to \pi^0$ transition form factor. Contents: (a) Pion DA in generalized QCD Sum Rules (SRs); (b) Light Cone Sum Rules (LCSR) analysis of the CLEO data for the $\gamma^*\gamma\to\pi^{0}$ transition form factor; (c) Recent lattice QCD data for the pion DA; (d) BaBar data---a challenge for QCD?

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Alexander P. Bakulev, S. V. Mikhailov, N. G. Stefanis. 2010-05-18. Pion Distribution Amplitude and Photon-to-Pion Transition Form Factor in QCD. https://arxiv.org/abs/1005.3173

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