LAUSR

Photoproduction of KΣ*(1385) on the nucleon is investigated within the Regge framework, and the reaction mechanism is analyzed based on the data existing in the channels γp→K+Σ*0 and γn→K+Σ*−. The Reggeization of the t-channel meson exchanges K(494)+K*(892)+K2*(1430) is employed to construct the photoproduction amplitude. The Rarita-Schwinger formalism is applied for the spin-3/2+ strangeness-baryon Σ* with a special gauge prescription utilized for the convergence of these reaction processes. Within a set of coupling constants determined from the symmetry argument for K and K* and from the duality and vector dominance for K2*, the data of both processes are reproduced to a good degree. The production mechanism of these processes is featured by the dominance of the contact term over the K exchange. The role of K2* is found to be more important than that of K*.