Present status of the nonstrange and other flavor partners of the exotic Theta+ baryon
Igor Strakovsky
GWU

Given the existing empirical information about the exotic Theta+ baryon, we analyze possible properties of its SU(3)_F-partners, paying special attention to the nonstrange member of the antidecuplet N*. The modified piN PWA analysis presents two candidate masses, 1680 MeV and 1730 MeV. In both cases, the N* should be rather narrow and highly inelastic. Our results suggest several directions for experimental studies that may clarify properties of the antidecuplet baryons, and structure of their mixing with other baryons. Recent experimental evidences from the GRAAL, STAR, and COSY-TOF Collaborations could be considered as a candidate for the Theta+ nonstrange partner.