Abstract

An SU(2) effective lagrangian is extended to an SUL(3)⊗SUR(3) by including the vector and axial vector meson. With this effective lagrangian, electromagnetic form factors of charged pion and kaon are calculated in both time- and space-like regions. Good agreement with experimental data is obtained for those form factors. Decay widths of ρ→ππ and φ→K+K− are also calculated and shown to agree with experimental data very well.

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