The alpha-particle spectra at different laboratory angles were measure
d from the fusion reaction Al-27 + Si-28 at E(lab) = 140.0 MeV. These
spectra deviate at both higher and lower energies from theoretical cal
culations using RLDM moments of inertia. In order to explain the exper
imental spectra changes were required in the emission barriers and mom
ents of inertia corresponding to large nuclear deformations.