Interaction of eta-meson with light nuclei

Details Interaction of eta-meson with light nuclei Interaction of eta-meson with light nuclei

1995-07-28

arxiv.org/abs/nucl-th/9507043v1

Few Body Syst.Suppl.8:309-316,1995

Physics

Nuclear Physics

Nuclear Theory

21K, RevTeX, 9 pages, no figures, to appear in FBS Suppl

Scientific paper

A microscopic treatment of $\eta$--nucleus scattering is presented. When applying the underlying exact integral equations, the excitation of the target are neglected, and an input $\eta N$ amplitude is chosen which reproduces the $S_{11}(1535)$ resonance. It is shown that the $\eta$--nucleus scattering lengths are quite sensitive to the $\eta N$ parameters and the nuclear wave functions. For a special choice of the parameters an $\eta {^4\!H}e$ quasi--bound state occurs.

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