Analysis of 40-Mevp−pScattering

Analysis of the 40-Mev $p-p$ scattering data of Johnston and Swenson shows that either the singlet proton-proton interaction gives an anomalously large $D$ wave and an anomalously small $S$ wave at 40 Mev, or that angular momentum states in addition to $S$, $P$, and $D$ are present. The anomalously small $S$-wave fits to the data are always accompanied by large polarizations unless $F$ waves are present as well. Hence, recent experimental measurements at Harvard, which show that the $p-p$ polarization at 40 Mev is small, rule out the possibility of fitting the data with only $S$, $P$, and $D$ waves.