Pion-photon Transition Distribution Amplitudes in the Spectral Quark Model ⋆

@inproceedings{Broniowski2007PionphotonTD,
  title={Pion-photon Transition Distribution Amplitudes in the Spectral Quark Model ⋆},
  author={Wojciech Broniowski and Enrique Ruiz Arriola},
  year={2007}
}
Abstract The vector and axial pion–photon transition distribution amplitudes are analyzed in the spectral quark model. We proceed by the evaluation of double distributions through the use of a manifestly covariant calculation based on the α representation of propagators. As a result polynomiality is incorporated and calculations become rather simple. Explicit formulas, holding at the low-energy quark-model scale, are obtained. The corresponding form factors for the anomalous decay π 0… CONTINUE READING
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