Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2003-11-06
Physics
High Energy Physics
High Energy Physics - Phenomenology
6 pages, espcrc2.sty, no figures; Talk given at the 12th International Conference "Selected Problems of Modern Physics", Dedic
Scientific paper
The earlier suggested and developed idea of quark-hadron duality, underlying "bremsstrahlung-weighted" sum rules for total or polarized photon interaction cross sections, is applied to the description of excitation of light scalar mesons in gamma-gamma interactions. The emphasis is put on the discussion of a role of the scalar diquark cluster degrees of freedom in the radiative formation of light scalar mesons.
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