MEASUREMENTS OF VECTOR ANALYZING POWER IN THE (D,T) REACTION ON CR-54, FE-56, AND NI-64 AT 15, 16, AND 18 MEV

Measurements of vector analyzing power have been carried out for the (dBAR,t) reaction on targets of Cr-54, Fe-56, and Ni-64 at deuteron energies of 15, 16, and 18 MeV. Data were taken over the angular range 10-degrees-55-degrees for transitions to low-lying states of J-pi = (1/2, 3/2, 5/2, 7/2)- using a position-sensitive counter telescope in the focal plane of an Enge spectrograph. Transitions to states of j-pi = 3/2- or 7/2- show only slight dependence on incident energy, while those to states of j-pi = 1/2- or 5/2- show a greater dependence, and greater variations between different states. Distorted-wave Born approximation calculations show at best qualitative agreement with the data. The results indicate that measurements of VAP for the (dBAR,t) reaction at low energies will not provide accurate estimates of j mixing for transitions on odd-A targets.