Scattering solutions of Bethe-Salpeter equation in Minkowski and   Euclidean spaces
  We shortly review different methods to obtain the scattering solutions of the Bethe-Salpeter equation in Minkowski space. We emphasize the possibility to obtain the zero energy observables in terms of the Euclidean scattering amplitude. 
J. Carbonell, V.A. Karmanov
hep-ph hep-th nucl-th