  We investigate the possible disappearance of Mott oscillations in the
scattering of bosonic nuclei at sub-barrier energies. This effect is universal
and happens at a critical value of the Sommerfeld parameter. It is also found
that the inclusion of the short-range nuclear interaction has a profound
influence on this phenomenon. Thus we suggest that the study of this lack of
Mott oscillation, which we call, "transverse isotropy" is a potentially useful
mean to study the nuclear interaction.
