Deuteron-Helium Differential Scattering Cross Sections

Abstract

Deuteron-helium elastic scattering cross sections have been measured from ${E}_{d}=0.28 \mathrm{to} 4.62$ Mev. A resonance at ${E}_{d}=1.070$ Mev and $\ensuremath{\Gamma}\ensuremath{\sim}35$ kev was observed at 9 angles from 90\ifmmode^\circ\else\textdegree\fi{} to 173.6\ifmmode^\circ\else\textdegree\fi{} c.m. This resonance corresponds to the previously observed 2.187-Mev state of ${\mathrm{Li}}^{6}$. No scattering anomaly was observed at the deuteron energy corresponding to the known 3.58-Mev level of ${\mathrm{Li}}^{6}$. This negative result is consistent with an assignment of $J={0}^{+}$, $T=1$ to this state. A very broad scattering anomaly is observed from about 3 Mev to 4.62 Mev. Most of the cross section measurements are good to 3 percent or better in absolute magnitude.