No evidence for a violation of time-reversal invariance has been found in a study of the inverse reactions Mg 24 + d^Mg 25 +£, using 10-MeV deuterons and 15-MeV protons. Relative differential cross sections for the two reactions agree to within an experimental standard deviation of 0.4%. This is tentatively interpreted as implying that the ratio of the T-odd to Teven reaction amplitudes is probably less than 0.4%.
The (d,He 8 ) reaction on Zr 90 , Y 89 , and Sr 88 has been studied with 21-MeV deuterons from the University of Washington cyclotron. Angular distributions were obtained for transitions leading to the ground state and the 0.906-, 1.51-, and 1.75-MeV states of Y 89 , the ground state and the 1.84-, 3.21-, 3.48-, and 3.64-MeV states of Sr 88 , and to the ground state and the 0.403-, and 0.847-MeV states of Rb 87 over the laboratory angular interval 15°-65°. The angular distributions were compared with predictions from a distorted-wave Born-approximation (DWBA) calculation, and spectroscopic factors were obtained. The I values of 1 and 3 were assigned to the transitions to the 3.48-and 3.64-MeV states of Sr 88 , respectively, for which the spins and parities were not previously known. On the basis of the DWBA analysis, large fractions of the (2^3/2) _1 and (I/5/2)-" 1 proton hole strengths are assigned to the first few excited states of Y 89 , Sr 88 , and Rb 87 , in qualitative agreement with simple shell-model predictions.
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