We have measured cross sections and analyzing powers for ${}_{}{}^9{}_{}{}^{}\mathrm{Be}$(p,p’) at $E_p$=135 MeV, observing the ${(3/2\mathrm{}}^{\mathrm{-}}$ and ${(5/2\mathrm{}}^{\mathrm{-}}$ members of the ground-state rotational band. Folding model calculations were performed using a density-dependent effective interaction in the local density approximation. The quadrupole contribution to elastic scattering was evaluated in distorted wave approximation. We find the elastic quadrupole contribution to be important for q>1.5 ${\mathrm{fm}}^{\mathrm{-}1}$, in good agreement with data. The effect on the elastic analyzing power data is quite large.

• Received 3 May 1988

DOI:https://doi.org/10.1103/PhysRevC.38.1490