Polarization of Protons from the High-Energy Photodisintegration of Deuterium

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Abstract
Photons with a mean energy of 294 MeV yielded photoprotons from a deuterium target at a mean angle of 58° in the laboratory. The protons were observed in a carbon-plate spark chamber and measurements of their elastic scattering in the carbon were used to determine the polarization components of the protons. The component parallel to the photodisintegration plane was found to be consistent with a value of zero within the statistical errors of the measurement as was expected. The component of polarization perpendicular to the photodisintegration plane was observed to be small and negative, and not inconsistent with a value of zero.