Features of the analyzing powers in deuteron elastic scattering near 80 MeV

Abstract Measurements of the differential cross section and vector ( A y ) and tensor ( A yy ) analyzing powers are reported for deuteron elastic scattering on 58 Ni at 80 MeV. A smooth exponential decline in the cross section is present at large scattering angles. Both A y and A yy rise to large, positive values beyond 60°. These effects are understood in terms of a semiclassical description of the scattering involving only the real central and spin-orbit potentials. A comparison is made to optical-model calculations using global potentials. Additional calculations show that the T R and T P tensor potentials have small but distinguishable effects on the tensor analyzing powers.