Photoproduction of K Sigma(1385) from the nucleon

Abstract

The reactions of $K\Sigma (1385)$ photoproduction, i.e., $\gamma p\to K^{+}{\Sigma }^0(1385)$ and $\gamma n\to K^{+}{\Sigma }^{-}(1385)$, are investigated in the resonance energy region for studying the role of the nucleon and $\Delta$ resonances of masses around 2 GeV. The Lagrangians for describing the decays of these resonances into the $K\Sigma (1385)$ channel are constructed and the decay amplitudes are obtained, which allows us to determine the coupling constants using the predictions of quark models or the data listed by the Particle Data Group. The resulting cross sections are compared to the data from the Thomas Jefferson National Accelerator Facility and the SPring-8, which indicates nontrivial contributions from the two-star-rated resonances in the Particle Data Group as well as from some missing resonances predicted by a quark model.

Comments: 4 pages, 3 figures, talk given at 12th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon (MENU 2010), Williamsburg, Virginia, 31 May - 4 Jun 2010