K ⁺Λ and K ⁺Σ⁰ Photoproduction in View of the New CLAS Data

We have investigated the effect of the new CLAS data consisting of the recoiled Λ polarization P, photon asymmetry Σ, target asymmetry T, and the double polarizations O_x and O_z, on the latest isobar models constructed for the kaon photoproduction processes γp → K ⁺Λ and γp → K ⁺Σ⁰. We found that those data might have significant effect, especially in the K ⁺Λ channel, where apparent changes are observed in the predicted differential cross sections after including the new CLAS data in the fitting database. The isobar model for the K ⁺Λ photoproduction must be accordingly modified in order to improve the agreement between model calculation and previous experimental data.