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Measurements of the Meson-Photon Transition Form Factors of Light Pseudoscalar Mesons at Large Momentum Transfer

CLEO Collaboration·J. Gronberg et al
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Abstract

Using the CLEO~II detector, we have measured the differential cross sections for exclusive two-photon production of light pseudoscalar mesons $π^0$, $η$, and $η^{\prime}$. From our measurements we have obtained the form factors associated with the electromagnetic transitions $γ^*γ$ $\to$ meson. We have measured these form factors in the momentum transfer ranges from 1.5 to 9, 20, and 30 GeV$^2$ for $π^0$, $η$, and $η^{\prime}$, respectively, and have made comparisons to various theoretical predictions.

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CLEO Collaboration, J. Gronberg et al. 1997-07-18. Measurements of the Meson-Photon Transition Form Factors of Light Pseudoscalar Mesons at Large Momentum Transfer. https://doi.org/10.1103/physrevd.57.33

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