Insights into the pi- p -> eta n reaction mechanism
  A dynamical coupled-channels formalism is used to investigate the $\eta-$meson production mechanism on the proton induced by pions, in the total center-of-mass energy region from threshold up to 2 GeV. We show how and why studying exclusively total cross section data might turn out to be misleading in pinning down the reaction mechanism. 
J. Durand, B. Julia-Diaz, T.-S. H. Lee, B. Saghai, and T. Sato