Search for new baryon resonances

Abstract

Within a chiral constituent quark formalism, allowing the inclusion of all known resonances, a comprehensive study of the recent eta photoproduction data on the proton up to 2 GeV is performed. This study shows evidence for a new S11 resonances and indicates the presence of an additional missing P13 resonance.

Comments: 10 pages, 3 figures, Invited talk given at the International Symposium on Electromagnetic Interactions in Nuclear and Hadron Physics (EMI2001), Osaka, Japan, 4-7 Dec. 2001