A new $N^{\ast }(1675)$ resonance in the $\gamma N\to \eta N$ reaction

Ki-Seok Choi, Seung-il Nam, Atsushi Hosaka +1

We study the $\eta$-photoproduction focusing on the new nucleon resonance which was observed at $\sqrt{s}=1675$ MeV with a narrow decay width ($\sim 10$ MeV) in the recent GRAAL exper…