  In a recent work, the cross section measurement of the 64Zn(p,alpha)61Cu
reaction was used to prove that the standard alpha-nucleus optical potentials
used in astrophysical network calculation fail to reproduce the experimental
data at energies relevant for heavy element nucleosynthesis. In the present
paper the analysis of the obtained experimental data is continued by comparing
the results with the predictions using different parameters. It is shown that
the recently suggested modification of the standard optical potential leads to
a better description of the data.
