Affiliation:
1. Joint Institute for Nuclear Research. Dubna, Russia
2. Joint Institute for Nuclear Research. Dubna, Russia; National University of Mongolia. NRC, Ulaanbaatar, Mongolia
Abstract
Heavy-ion-induced projectile fragmentation reactions at Fermi energies are of interest to investigate the properties
of nuclei far from the valley of stability, nuclear potentials, to get knew knowledge about nuclear equation of state.
Isotopes far from stability line can be useful for various applications. It is therefore of interest to predict relative
yields of isotopes and their energies with high precision. Here we treat such reactions in a microscopic approach,
which consists of several steps: initialization of ground states of the colliding nuclei, dynamical evolution until
the freeze-out point where the primary fragments can be identified, calculation of the excitation energy of
the primary fragments, and their de-excitation. For the dynamical evolution we use a Boltzmann–Vlasov type
transport equation, and for the de-excitation a statistical multi-fragmentation description. We apply this approach
to collisions of projectile nuclei 40Ar on target 9Be at energy 36.5 A MeV, obtain isotope distributions and velocity
spectra of the produced isotopes and compare the results of our calculations to experimental data obtained at
COMBAS set-up in JINR.
Funder
Russian Foundation for Basic Research
Subject
Space and Planetary Science,General Physics and Astronomy,Astronomy and Astrophysics
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