Photoproduction of Θ+ and other pentaquark states

We present constraints on the relative photoproduction cross sections of positive parity pentaquark states, Σ5, Λ5, and N5, based on a minimum phenomenology gained in γN→K-bar Θ+ and their baryon-meson couplings as in the work of Close and Dudek. The possibility of anomalous signals in γp→K0S(Θ+;Σd+) is discussed. We emphasize the importance of comparing γN→K-barΘ+ with 'conventional' states such as γN→KΣ(1660)