Experimental Evidence for Optimal Resonances in Pion-Nucleus Scattering
  Experimental data on the pion-nucleus total cross sections are analyzed in terms of the optimal resonances predictions (OR). The OR-predictions are found in a good agreement with the actual experimental data in the region corresponding to the Delta(1236) resonance in elementary pi-N scattering. The essential signatures of the optimal resonances are experimentally verified with high accuracy. 
D.B. Ion (1), M.L.D. Ion (2), R. Ion-Mihai (2), T.Angelescu (2),   A.A.Radu (3) ((1)Institute for Physics and Nuclear Engine...