On quasi-bound states in eta-nucleys systems
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The optical potential for the $η$-meson is calculated. This is based on a new determination of a large $η$-N scattering length and recent experiments of $η$ production in two nucleon collisions. These determine the $η$ - nuclear potential well to be about 45 MeV deep and able to support S, P, D and F quasibound states. Some of the higher angular momentum states are fairly narrow and offer a chance of experimental detection.
6 pages, 1 figure, email jarekkul@fu.edu.pl, wycech@fuw.edu.pl, anthony.green@helsinki.fi
6 pages, 1 figure, email jarekkul@fu.edu.pl, wycech@fuw.edu.pl, anthony.green@helsinki.fi