Search for Resonance Structure in thenpTotal Cross Section below 800 MeV

Abstract
The np total cross section has been measured from 40 to 770 MeV with good statistical precision and better than 1% energy resolution. No evidence is seen for narrow resonances with areas greater than 5 mb MeV or for the I=0, F31 state reported by other authors. From 200 to 700 MeV the present results are as much as 6% lower than previous data.