Angular Distribution in the High Energy Deuteron Photoeffect

Abstract

Consideration is given to the possible use of the electric dipole isotropic part of the deuteron photo-disintegration cross section as an indicator of weak odd state noncentral forces. This cross section is not very sensitive to weak tensor forces of the usual type, but is strikingly affected by a singular spin-orbit coupling. While for the usual tensor forces the ratio, $\frac{a}{b}$, of the isotropic to the ${sin}^2\theta$ term in the cross section varies slowly over a broad energy range, it rises rapidly with energy if the noncentral force is strongly singular. Calculation is done in first Born approximation. A detailed estimate of the magnetic isotropic cross section is included, for this is an unexpectedly large "background" to the electric term which is of interest.