The restoration of Wigner’s SU(4)-symmetry in the superheavy nucleus and its correlation with the problem 'island of stability', or does the 'island of stability' exist?

Autor: A. M. Nurmukhamedov
Rok vydání: 2016
Předmět:
Zdroj: Modern Physics Letters A. 31:1650145
ISSN: 1793-6632
0217-7323
DOI: 10.1142/s0217732316501455
Popis: This paper reviews the history and stages of experimental verification of the hypothesis of Wigner’s spin–isospin SU(4)-symmetry restoration in the field of heavy atomic nuclei and its implications on hypothesis of the “island of stability”. Energies of [Formula: see text]-decay of a number of [Formula: see text]-chains of new superheavy nuclei were calculated based on Wigner’s mass formula without contribution of spin–orbit interaction that correspond to the restoration of Wigner’s spin–isospin symmetry. Calculated energies of the [Formula: see text]-decay fit the experimental data better than other theoretical approaches. It is concluded that there is a need to continue theoretical research of the “island of stability” taking into account mechanisms of restoration of Wigner’s spin–isospin SU(4)-symmetry.
Databáze: OpenAIRE