https://doi.org/10.1140/epja/s10050-022-00819-2
Regular Article - Theoretical Physics
Production of neutron-rich heavy nuclei around
in multinucleon transfer reactions
School of Physics and Optoelectronics, South China University of Technology, 510640, Guangzhou, China
Received:
16
May
2022
Accepted:
22
August
2022
Published online:
1
September
2022
Within the framework of the dinuclear system model, the production mechanism of neutron-rich heavy nuclei around has been investigated systematically. The isotopic yields in the multinucleon transfer reaction of
U +
Cm are analyzed and compared with the available experimental data at GSI. Systematics on the production of superheavy nuclei via the collisions of
U on actinide nuclides
Cf,
Es and
Fm is investigated thoroughly. It is found that the shell effect is of importance in the formation of neutron-rich nuclei around
owing to the enhancement of fission barrier and neutron separation energy. The fragments in the multinucleon transfer reactions manifest the broad isotopic distribution and are dependent on the beam energy. The polar angles of the fragments tend to the forward emission with increasing the beam energy. The production cross sections of new isotopes are estimated and the heavier targets are available for the neutron-rich superheavy nucleus formation. The optimal reaction system and beam energy are proposed for the future experimental measurements.
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