Threshold scattering of the eta-meson off light nuclei

Abstract

The scattering lengths of eta-meson collisions with light nuclei d,t,3He, and 4He are calculated on the basis of few-body equations in coherent approximation. It is found that the eta-nucleus scattering length depends strongly on the number of nucleons and the potential-range parameter. By taking into account the off-shell behavior of the eta-N amplitude, the eta-4He scattering length increases considerably.

8 pages, no figures, RevTeX, submitted to Phys.Lett.B

Cited by in corpus (13)

• Coherent photoproduction of eta-mesons off 3He - search for eta-mesic nuclei
• Interaction of eta mesons with nuclei
• Dependence of calculated binding energies and widths of $\eta$-mesic nuclei on treatment of subthreshold $\eta$-nucleon interaction
• Photoproduction of mesons off nuclei
• Determination of the ${\mathbf{\eta }}^3\mathrm{He}$ threshold structure from the low energy $\mathbf{pd}\to {\mathbf{\eta }}^3\mathrm{He}$ reaction
• $\eta$-Deuteron Scattering
• Eta and eta-prime meson production in the reaction pn -> dM near threshold
• Faddeev-type calculation of eta-d threshold scattering
• Extraction of scattering lengths from final-state interactions
• Photoproduction of mesons from nuclei - In-medium properties of hadrons
• Final state interactions in the eta-d system
• The $\eta {-}^3$He scattering length revisited
• Coherent Photoproduction of eta-mesons on Three-Nucleon Systems