Quasielastic Kaon Knockout from a Proton and Momentum Distribution of Virtual Kaons in the Proton.

The momentum distribution of kaons in the proton and the coupling-constant ratio f[sub KΛN]/f[sub KΣN] are determined on the basis of the [sup 3]P[sub 0] quark model of meson–baryon coupling. The longitudinal cross section for kaon electroproduction is calculated. The results of the present study are compatible with available experimental data, but more detailed data on the longitudinal cross section would make it possible to refine the absolute values of the coupling constants f[sub KΛN] and f[sub KΣN].© 2003 MAIK “Nauka / Interperiodica”. [ABSTRACT FROM AUTHOR]