Baryon resonance production in the $\pi +d$ reaction and search for $\eta$-mesic nuclei at J-PARC

Abstract

A double-scattering reaction ${\pi }^{+}+d\to p+p+\eta$, where an $\eta$ meson is rescattered, may provide new information on the $\eta N\to \eta N$ scattering. An idea to measure this reaction is proposed. Moreover, experimental search for $\eta$-mesic nuclei by the same $(\pi ,N)$ reaction is discussed.

Comments: Talk given at the Workshop on "Hadron and Nuclear Physics (HNP09)", RCNP, Osaka, Japan, Nov. 16-19, 2009. To appear in the proceedings