Medium effects to the N(1535) resonance and eta mesic nuclei

Abstract

The structure of eta-nucleus bound systems (eta mesic nuclei) is investigated as one of the tools to study in-medium properties of the N(1535) (N*) resonance. We show that, as a general consequence, the eta-nucleus potential has a repulsive core at the nuclear center with an attractive part at the nuclear surface, if sufficient reduction of the mass difference of N and N* stems from the in-medium effects to N*. The (d,3He) spectra are evaluated for the formation of these bound states to investigate the experimental feasibility.

LaTeX, 4 pages, 2 figures. To appear in Proceedings of PANIC02, XVI International Conference on Particles and Nuclei, Osaka, Japan, September 30 - October 4, 2002

Cited by in corpus (7)

• Nucleon and hadron structure changes in the nuclear medium and impact on observables
• Formation of mesic nuclei by (γ,p) reactions
• eta-Nucleus interactions and in-medium properties of N*(1535) in chiral models
• Level crossing of particle-hole and mesonic modes in eta mesic nuclei
• Formation of eta-mesic nuclei by (pi,N) reaction and N^*(1535) in medium
• $\eta$-nucleus interaction from the $d+d$ reaction around the $\eta$ production threshold
• Few-body aspects of the near threshold pseudoscalar meson production