Colloque GANIL 2023

Session

Heavy and Superheavy Elements

26 sept. 2023, 16:00

Présidents de session

Heavy and Superheavy Elements

• Araceli LOPEZ-MARTENS (CSNSM)

62. Nuclear structure and excited states of superheavy nuclei

EGIDO, J. Luis (Universidad Autónoma de Madrid)

26/09/2023 16:00

Nuclear Structure

Invited presentation

We present the first triaxial beyond-mean-field studies of super-heavy nuclei. They include the restoration of the particle-number and angular-momentum symmetries and the mixing of different shapes using the generator coordinate method. The importance of the $\gamma$ degree of freedom is highlighted by comparing the triaxial to axial-symmetric calculations performed within the same framework....

40. Isthmus connecting mainland and island of stability of super-heavy nuclei

M. KOWAL, Michal (NCBJ)

26/09/2023 16:25

Related theoretical developments

Oral Presentation

The excitation functions for producing isotopes of super-heavy nuclei with charge numbers 108-116 are computed and compared to experimental data for $^{48}Ca$ and $Ra$/actinide-based complete fusion reactions.
The estimated production cross sections suggest that the Ds nucleus marks the boundary between the island of stability of super-heavy nuclei and the mainland, which contains a...

42. Fusion and competitive fission modes in the cold synthesis of super-heavy nuclei

AUGUSTYN, Aleksander (National Centre for Nuclear Research, Poland (NCBJ))

26/09/2023 16:45

Related theoretical developments

Oral Presentation

One of the long-standing topics in nuclear physics is the competition between the symmetric and asymmetric modes of quasi-fission in collisions of heavy and very heavy nuclear systems. The separation of these modes from the excited compound nucleus fission is quite difficult experimentally. Theoretical calculations may give valuable insight into ascertaining contributions from these various...

45. Theoretical estimation and reaction mechanism of synthesizing neutron rich nuclei in superheavy mass region

ARITOMO, Yoshihiro (Kindai University)

Nuclear Dynamics

Oral Presentation

Research on neutron-rich nuclei in the heavy and superheavy mass region is gaining importance in the fields as the synthesis of new elements [1,2,3], the r-process and multi-nucleon transfer reactions. Furthermore, the use of neutron-rich nuclei is indispensable for reaching the Island of Stability [4] that are predicted to exist in the superheavy element region, and the evaluation of the...