Shape evolution of even-even heavy and superheavy elements within the covariant energy density functional theory

by Dr Vaia Prassa (Department of Computer Science and Telecommunications, Faculty of Science, University of Thessaly)


Shape evolution in atomic nuclei is one of the most intriguing subjects of research in nuclear structure studies. The shape of atomic nuclei depends on the residual interaction of the valence nucleons outside closed shells that can polarize the nuclear core leading to axially deformed ground state configurations or triaxial structures. In some cases, different shape configurations can coexist. In this seminar I will present the shape evolution of even-even heavy and superheavy elements as predicted by the covariant density functional model. Low-lying excitation spectra and B(E2) transition rates of even-even nuclei are obtained as solutions of a five-dimensional collective Hamiltonian with parameters determined by constrained self-consistent mean-field calculations based on the relativistic energy density functional.


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