Nuclear Shapes: Coexistence and Transitions

June 22, 2018
12:00pm to 1:00pm

Sala 201 in Módulo M-­‐15, Facultad de Ciencias

Specialist level
Speaker: 
Dario Vretenar
Institution: 
University of Zagreb
Location&Place: 

Sala 201 in Módulo M-­‐15, Facultad de Ciencias

Abstract: 

The coexistence of different geometric shapes at low energies
presents a universal structure phenomenon that occurs over the entire chart of nuclides.
Studies of shape transitions and coexistence are important for
understanding the microscopic origin of collectivity and
modifications of shell structure in exotic nuclei far from stability.
A systematic introduction and analysis of characteristic
signatures of coexisting nuclear shapes and
shape transitions in different mass regions will be
presented using a global self--‐consistent
theoretical method based on nuclear energy
density functionals and the collective Hamiltonian model.
Predictions for quadrupole and octupole deformation energy
surfaces, low--‐energy excitation spectra and transition
rates, as well as shape invariants, will be compared to
available data for a large number of even--‐even nuclei.
The same theoretical framework can also be used to analyse
static and dynamic aspects of
the fission process.