Measurement of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>np</mml:mi></mml:math>Charge Exchange for Neutron Energies 150-800 MeV

The $s$ and $u$ variations of the $\mathrm{np}$ charge-exchange ($\mathrm{np}\ensuremath{\rightarrow}\mathrm{pn}$) cross section are measured to be relatively smooth and without structure at intermediate energies---in sharp contast to previous results.