Low energy QCD Lagrangian description of strange meson photoproduction off the proton

Based on low energy QCD Lagrangian, and using wave function of baryon in [SuSF=(6) O(3)]sym.() Suc(3) quark model, strange meson photoproduction off the proton is studied. Calculations of cross sections and p-polarization for γ + p→ K+ + ∧ reaction are performed. The theoretical results show that, compared to traditional phenomenological models, the low energy QCD Lagrangian provides a successful description of the reaction process with only one free parameter, strongly coupling constant αm.