Calculation of kaon electromagnetic form factor in the framework of coupled Schwinger-Dyson and Bethe-Salpeter formulation

The kaon electromagnetic form factor is calculated in the framework of coup led Schwinger-Dyson equation in rainbow approximation and Bethe-Salpeter eq uation in ladder approximation with the modified flat-bottom potential, whi ch is the combination of the flat-bottom potential with considerations for the infrared and ultraviolet asymptotic behaviours of the effective quark-g luon coupling. All our numerical results give good fit to experimental valu es and other theoretical results.