Pion and Kaon Electromagnetic Form Factors in a $SU_{L}(3)\otimes SU_{R}(3)$ Effective Lagrangian

Details Pion and Kaon Electromagnetic Form Factors in a $SU_{L}(3)\otimes SU_{R}(3)$ Effective Lagrangian Pion and Kaon Electromagnetic Form Factors in a $SU_{L}(3)\otimes SU_{R}(3)$ Effective Lagrangian

1999-12-08

arxiv.org/abs/nucl-th/9912015v2

Eur.Phys.J. A9 (2000) 269-276

Physics

Nuclear Physics

Nuclear Theory

19pages, 7figures

Scientific paper

10.1007/s100500070044

A SU(2) effective lagrangian is extended to a $SU_{L}(3)\otimes SU_{R}(3)$ by including the vector and axial vector meson. With this effective lagrangian, electromagnetic form factors of charged pion and kaon are calculated. The pseudoscalar meson loops are taken into account. Good agreement with experimental data is obtained for those form factors. Decay widths of $\rho\to \pi\pi$ and $\phi\to K^{+}K^{-}$ are also calculated and shown to agree with experimental data very well.

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