Electromagnetic Form Factors of Charged and Neutral Kaons

Abstract

The charged and neutral kaon form factors are calculated as a phenomenological application of the QCD Dyson-Schwinger equations. The results are compared with the pion form factor calculated in the same framework and yield \mbox{$F_{K^{\pm }}(Q^2)>F_{{\pi }^{\pm }}(Q^2)$} on \mbox{$Q^2\in [0,3]$~GeV${}^2$}; and a neutral kaon form factor that is similar in form and magnitude to the neutron charge form factor. These results are sensitive to the difference between the kaon and pion Bethe-Salpeter amplitude and the $u$- and $s$-quark propagation characteristics.

Comments: 11 Pages, 2 figures, REVTEX, uses epsfig. No change