HE-3 (GAMMA, PD) CROSS-SECTIONS WITH TAGGED PHOTONS BELOW THE DELTA-RESONANCE

The reaction cross section for He-3(gamma, pd) has been measured using the Saskatchewan-Alberta Large Acceptance Detector (SALAD) with tagge d photons in the energy range from 166 to 213 MeV. The energy and angl e of the proton and the deuteron were measured with SALAD while the ta gger determined the photon energy. Differential cross sections have be en determined for 40-degrees < theta(p) < 150-degrees. The results ar e in agreement with the Bonn and Saclay photodisintegration measuremen ts. The most recent photodisintegration measurement performed at Bates is higher by a factor of 1.3, which is just within the combined error s of the experiments. The proton capture results differ by a factor of 1.7 from the present experiment. Comparisons are made with microscopi c calculations of the cross sections.