Production mechanism of the neutron-rich nuclei in multinucleon transfer reactions: A reaction time scale analysis in energy dissipation process

The energy dissipation processes in multinucleon transfer reactions of 136Xe+198Pt at incident energies Elab=5.59 and 7.98 MeV/nucleon are investigated by using the improved quantum molecular dynamics model. The total-kinetic-energy-mass (TKE-Mass) distributions, the total kinetic energy loss (TKEL)...

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Bibliographic Details
Published in:Physics letters. B 2020-10, Vol.809, p.135697, Article 135697
Main Authors: Li, Cheng, Tian, Junlong, Zhang, Feng-Shou
Format: Article
Language:English
Subjects:
Cross sections
Energy dissipation
ImQMD model
Multinucleon transfer reactions
Neutron-rich nuclei
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Summary:The energy dissipation processes in multinucleon transfer reactions of 136Xe+198Pt at incident energies Elab=5.59 and 7.98 MeV/nucleon are investigated by using the improved quantum molecular dynamics model. The total-kinetic-energy-mass (TKE-Mass) distributions, the total kinetic energy loss (TKEL) distributions, and the excitation energy distributions of the primary binary products under different contact time scales of the reaction partners are analyzed. It shows that the value of the energy dissipation has an increasing trend over contact time. The quasielastic, the deep-inelastic, and the quasifission events can be roughly distinguished by the contact time. By analysing the correlation between the isotopic cross sections and the contact time, we find that the neutron-rich nuclei are produced in the deep-inelastic collisions.
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2020.135697