Entrance-channel potentials in nucleus-nucleus collisions, relevant for the synthesis of superheavy elements, are systematically studied within a semi-microscopic approach, where microscopic nuclear densities of the colliding spherical or deformed nuclei are used in semi-classical expressions of the energydensity functional. From experimental data on fusion windows evidence is found that the ex...

Isotopic and isotonic chains of superheavy nuclei are analyzed to search for spherical double shell closures beyond Z = 82 and N = 126 within the new effective field theory model of Furnstahl, Serot, and Tang for the relativistic nuclear many-body problem. We take into account several indicators to identify the occurrence of possible shell closures, such as two-nucleon separation energies, two-...

The rotational band structure of the Z=104 nucleus (256)Rf has been observed up to a tentative spin of 20ℏ using state-of-the-art γ-ray spectroscopic techniques. This represents the first such measurement in a superheavy nucleus whose stability is entirely derived from the shell-correction energy. The observed rotational properties are compared to those of neighboring nuclei and it is shown tha...

Isotopic and isotonic chains of superheavy nuclei are analyzed to search for spherical double shell closures beyond Z=82 and N=126 within the new effective field theory model of Furnstahl, Serot, and Tang for the relativistic nuclear many-body problem. We take into account several indicators to identify the occurrence of possible shell closures, such as two-nucleon separation energies, two-nucl...

Spontaneous–fission half–lives (T SF 1/2 ) of the heaviest even–even nuclei are evaluated and compared with their alpha–decay mode. Calculations of T SF 1/2 are performed in the dynamical way with potential energy obtained by the macroscopic–microscopic method and the inertia tensor obtained by the cranking approximation. The alpha– decay half–lives (Tα 1/2) are calculated for the same region o...

Self-consistent methods for the structure of heavy and superheavy nuclei are reviewed. The construction application energy-density functionals discussed. relationship between self-consistent microscopic-macroscopic approaches is considered on mean-field level. extraction single-particle potentials from functional described. isotopic dependence nucleon distributions its influence nucleus–nucleus...

Predictions and structure studies of superheavy elements (SHE) have been made, since the establishment of the nuclear shell model[1]. Especially in the last decade, elaborate investigations have been performed of shell correction energy and thereby of a possible location of the superheavy island in the nuclear chart. Furthermore, not only about the center of the island, but also about stability...

Using the dinuclear system concept we present calculations of production cross sections for the heaviest nuclei. The obtained results are in a good agreement with the experimental data. The experimentally observed rapid fall-off of the cross sections of the cold fusion with increasing charge number Z of the compound nucleus is explained. Optimal experimental conditions for the synthesis of the ...