K0 form factor and charge radius in a covariant Salpeter model

The electromagnetic form factor for the \(K^0\) is calculated in a covariant formulation of the Salpeter equation for \(q\bar q\) - bound states, which has been presented recently for the mass spectrum, decay properties and form factors of the light pseudoscalar and vector mesons. The \(K^0\) charge radius dependence on the difference between strange and down constituent quark mass is discussed.