https://doi.org/10.1140/epja/i2004-10030-0
The influence of the entrance channel dynamics on the evaporation residue formation
1
INFN, Sezione di Catania, and Dipartimento di Fisica dell’Universitá di Messina, Messina, Italy
2
Heavy Ion Physics Department, INP, Tashkent, Uzbekistan
3
Bogoliubov Laboratory of Theoretical Physics, JINR, Dubna, Russia
4
Université Libre de Bruxelles, Bruxelles, Belgium
5
Institut de Recherches Subatomiques, Strasbourg, France
* e-mail: giardina@nucleo.unime.it
The dynamical effects of the entrance channel on the competition between quasifission and fusion processes, and on the evaporation residue formation are investigated. We have analyzed the results and compared our calculations with the experimental data obtained in the 16
O + 204
Pb and 96
Zr + 124
Sn reactions having very different mass asymmetries and leading to the 220
Th
* compound nucleus. We have found that different partial capture cross-sections 
for these reactions lead to different fusion-quasifission competitions and, consequently, to different partial fusion cross-sections 
of the compound nucleus formed in the two reactions. The dynamical conditions also affect the fission-evaporation competition of the excited intermediate nuclei along the CN de-excitation cascade and, consequently, the evaporation residue formation.
© Società Italiana di Fisica and Springer-Verlag, 2004
