Phys. Rev. C 56, 1099–1113 (1997)Unified approach to pseudoscalar meson photoproductions off nucleons in the quark modelReceived 24 January 1997; published in the issue dated August 1997 A unified approach to the pseudoscalar meson (π, η, and K) photoproductions off nucleons are presented. It begins with the low energy QCD Lagrangian, and the resonances in the s and u channels are treated in the framework of the quark model. The duality hypothesis is imposed to limit the number of the t-channel exchanges. The CGLN amplitudes for each reaction are evaluated, which include both proton and neutron targets. The important role of the S-wave resonances in the second resonance region is discussed, and is particularly important for the K, η, and η′ photoproductions. © 1997 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevC.56.1099
DOI:
10.1103/PhysRevC.56.1099
PACS:
13.75.Gx, 13.40.Hq, 13.60.Le, 12.39.Ba
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