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On the Pion Distribution Amplitude: Derivation, Properties, Predictions

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Abstract

We provide an in-depth analysis of the π distribution amplitude in terms of two different Gegenbauer representations. Detailed predictions for the \({\pi-\gamma}\) transition form factor are presented, obtained with light-cone sum rules. Various π distribution amplitudes are tested and the crucial role of their endpoint behavior in the form-factor analysis is discussed. Comparison with the data is given.

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Authors and Affiliations

  1. Institut für Theoretische Physik II, Ruhr-Universität Bochum, 44780, Bochum, Germany

    N. G. Stefanis

  2. Bogoliubov Laboratory of Theoretical Physics, JINR, 141980, Dubna, Russia

    S. V. Mikhailov & A. V. Pimikov

Authors
  1. N. G. Stefanis
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  2. S. V. Mikhailov
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  3. A. V. Pimikov
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Correspondence to N. G. Stefanis.

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Stefanis, N.G., Mikhailov, S.V. & Pimikov, A.V. On the Pion Distribution Amplitude: Derivation, Properties, Predictions. Few-Body Syst 56, 295–301 (2015). https://doi.org/10.1007/s00601-014-0923-2

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  • DOI: https://doi.org/10.1007/s00601-014-0923-2

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