Study of the N N eta' production with COSY-11
  We describe a new high precision measurement of the production cross-section for the eta' meson in proton-proton collisions for five beam momenta at low access energy region Q conducted at the COSY-11 detection system together with an updated results of all other previous measurements of cross-section for (pp-->pp eta') at COSY-11. 
E. Czerwi\'nski, P. Moskal, M. Silarski
nucl-ex