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For a general class of $N$-body Schr\"odinger operators with short-rangepair-potentials the wave and scattering matrices as well as the restricted waveoperators are all defined at any non-threshold energy. In fact this holdswithout imposing any a priori decay condition on channel eigenstates and evenfor models including long-range potentials of Derezi\'nski-Enss type. In thispaper we improve for short-range models on the known \emph{weak continuity}statements in that we show that all non-threshold energies are \emph{stationarycomplete}, resolving in this case a conjecture from \cite {Sk3}. A consequenceis that the above scattering quantities depend \emph{strongly continuously} onthe energy parameter at all non-threshold energies (whence not only almosteverywhere as previously demonstrated). Another consequence is that thescattering matrix is unitary at any such energy. As a side result we give a newand purely stationary proof of asymptotic completeness for $N$-body short-rangesystems.

Stationary completeness: the $N$-body short-range case