  We present detailed results of a theoretical investigation on the production
of evaporation residue nuclei obtained in a heavy ion reaction when charged
particles (proton and $\alpha$-particle) are also emitted with the neutron
evaporation along the deexcitation cascade of the formed compound nucleus. The
almost mass symmetric $^{82}$Se+$^{138}$Ba reaction has been studied since
there are many experimental results on individual evaporation residue (ER)
cross sections after few light particle emissions along the cascade of the
$^{220}$Th compound nucleus (CN) covering the wide 12--70 MeV excitation energy
range. Our specific theoretical results on the ER cross sections for the
$^{82}$Se+$^{138}$Ba are in good agreement with the available experimental
measurements, but our overall theoretical results concerning all possible
relevant contributions of evaporation residues are several times greater than
the ERs measured in experiment. The discrepancy could be due to the
experimental difficulties in the identification of ER nuclei after the emission
of multiple neutral and charged particles, nevertheless the analysis of ER data
is very important to test the reliability of the model and to stress the
importance on the investigation of ER nuclei also obtained after charged
particle emissions.
