Summary:
In the present thesis, several calculations were made for the description
of the nuclear reaction mechanism for the interaction ofa86Kr (15 MeV/nucleon)
beam with 64Ni, 58Ni, 124Sn and 112Sn as targets and of 86Kr (25 MeV/nucleon)
beam with 64Ni and 124Sn as targets. The results of these calculations were
compared with the experimental data of the same reactions previously obtained
by our group. The calculations for the dynamical stage are carried out using
the microscopic constrained molecular dynamics model (CoMD), the
phenomenological deep inelastic transfer model (DIT) and a modified edition of
the latter. For the de-excitation of the projectile-like fragments, the
statistical multifragmentation model (SMM) and the deexcitation code GEMINI
were used to describe the properties of the product distributions. A very good
agreement with the experimental results was observed using both the CoMD and
the modified DIT codes. The understanding of such nuclear reaction mechanism at
beam energy abovethe Coulomb barrier, but below the Fermi energy, involving
peripheral nucleon exchange, suggests that the choice of both projectile and
target may be properly exploited in the production of neutron-rich rare
isotopes. These nuclear reactions offer an attractive route to access extremely
neutron-rich rare isotopes toward the astrophysical r-process path, and,
possibly the neutron drip-line.
Keywords:
Heavy ion nuclear reactions, Cross section, Constrained molecular dynamics, Neutron drip-line, Nuclear deexcitation
