arXiv:nucl-th/9601035·v1·Nuclear Theory
The eta-meson light nucleus resonances and quasi-bound states
S. A. Rakityansky🇿🇦 · S. A. Sofianos🇿🇦 · M. Braun🇿🇦 · V. B. Belyaev🇷🇺 · W. Sandhas🇩🇪
Abstract
The position and movement of poles of the amplitude for elastic eta-meson scattering off the light nuclei d, t, ^3He, and ^4He are studied. It is found that, within the existing uncertainties for the elementary eta-N interaction, all these nuclei can support a quasi-bound state. The values of the eta-nucleus scattering lengths corresponding to the critical eta-N interaction which produces a quasi--bound state are given.
Comments: 31K,RevTex, 9 pages, 1 Tex-pseudofigure, no postscript files, submitted to Phys.Rev.C Rapid Comm