Analyzing-power measurements for theHe3(t→,d)He4reaction

Abstract
We report analyzing-power angular distributions for the He3(t,d)He4 reaction at bombarding energies of 9.02, 12.86, and 17.02 MeV, and an excitation function at 90° c.m. from 9.02 to 17.27 MeV. The angular distributions show marked deviations from the antisymmetric shape predicted by a simple particle-transfer model incorporating charge symmetry. Reaction mechanisms and violations of charge symmetry which might account for the data are discussed.