1997/07/28 by S. A. Sofianos, Sofianos, S. A., S. A. Rakityansky +1
Engineering · Physics and Astronomy · #Quantum, superfluid, helium dynamics #Scientific Research and Discoveries #Superconducting Materials and Applications #nucl-th
paper · pdf · doi:10.48550/arxiv.nucl-th/9707044
10 pages, Revtex, only latex-figures, Talk given at European Conference on ADVANCES IN NUCLEAR PHYSICS AND RELATED AREAS, Thessaloniki-Greece 8-12 July 1997
arxiv created 1997/07/28 · arxiv updated 2009/12/01
A microscopic treatment of eta-nucleus system is presented. Using this, the poles of the amplitude describing elastic scattering of eta-meson off the light nuclei 2H, 3H, 3He, and 4He have been located in the second quadrant of the complex plane of the eta-nucleus relative momentum. The results obtained indicate that, within the existing uncertainties in the eta-Nucleon input data, a bound state could exist. By a qualitative consideration it is shown that such bound-states, cannot be narrow. It is further shown that scattering length calculations cannot provide a definite answer on the question concerning the existence of eta-nucleus bound states.