Quark-Hadron Duality in Photoabsorption Sum Rules and Two Photon Decays of Meson Resonances

Details Quark-Hadron Duality in Photoabsorption Sum Rules and Two Photon Decays of Meson Resonances Quark-Hadron Duality in Photoabsorption Sum Rules and Two Photon Decays of Meson Resonances

2002-12-19

arxiv.org/abs/hep-ph/0212281v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, Latex, no figures; Talk given at the 2nd International Symposium on the Gerasimov-Drell-Hearn Sum Rule and the Spin S

Scientific paper

The idea of quark-hadron duality is developed and applied to integral sum
rules for the photoexcitation of meson resonances. Some applications of the
presented approach in the light and heavy quark sectors are made, and the role
of the scalar diquark cluster degrees of freedom in the radiative formation of
light scalar mesons is discussed.

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