Polarization Response Functions in Kaon Electroproduction

The electroproduction of kaons on the nucleon is shown to be an ideal tool to extract electromagnetic form factors of strange mesons and hyperons. Longitudinal n(e, eK)Λ cross sections are found to be sensitive to the K form factor, while sensitivity to the Λ magnetic form factor can be seen in recoil-beam double polarization observables. The KKγ transition form factor could be extracted by measuring transverse response functions in the KΣ channels.