Measurements of the meson-photon transition form factors of light pseudoscalar mesons at large momentum transfer

Authors

J. Gronberg, University of California - Santa Barbara
Kenneth A. Bloom, University of Nebraska-LincolnFollow
CLEO Collaboration

Date of this Version

1-1-1998

Comments

Published by American Physical Society. Phys. Rev. D 57, 33 (1998). Permission to use. http://prd.aps.org/. Copyright © 1998 American Physical Society.

Abstract

Using the CLEO II detector, we have measured the differential cross sections for exclusive two-photon production of light pseudoscalar mesons π⁰, η, and η′. From our measurements we have obtained the form factors associated with the electromagnetic transitions γ*γ → meson. We have measured these form factors in the momentum transfer ranges from 1.5 to 9, 20, and 30 GeV² for π⁰, η, and η′, respectively, and have made comparisons to various theoretical predictions.