Quark-hadron duality sum rules for spin-dependent photon-nucleon and photon-photon resonance cross-section

Sum rules for two-photon decay widths of

Sum rules for two-photon decay widths of meson resonances and quark-gluon configuration structure of low-lying scalar mesons

✍ S.B Gerasimov 📂 Article 📅 2004 🏛 Elsevier Science 🌐 English ⚖ 581 KB

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 discus