Binding of eta_c meson with light nucleus
  Binding energy of eta_c with ^4 He has been calculated on the basis of Yukawa type potential. Final Rank Approximation (FRA) has been used for microscopical treatment of the initial 5-body problem. The results are compared with the results of the folding model and variational calculations. 
V.B.Belyaev, A.F.Os'kin, W.Sandhas