Two-Photon Decays of Mesons in a Relativistic Quark Model

  • Claus R. Münz
  • Published 1998


We present a relativistic calculation of two-photon decays for heavy and light mesons in the framework of the Salpeter equation for quarkantiquark states. The meson-photon-photon vertex is computed by reconstructing the Bethe-Salpeter vertex function and evaluating the four-dimensional Feynman diagram with off-shell quark amplitudes. The two-photon width… (More)

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