LABORATORI NAZIONALI DI LEGNARO
Beyond-mean-field methods based on phenomenological energy density functionals like Skyrme, Gogny and/or Relativistic Mean Field have experienced substantial developments during the last two decades. These improvements of the traditional self-consistent mean-field methods based on the Hartree-Fock-Bogoliubov (HFB) approach have allowed a direct comparison between experimental and theoretical excitation energies and transitions. Very recently, symmetry restorations (particle number, parity and angular momentum projection) and shape mixing (within the generator coordinate method) have been implemented with Covariant and Gogny functionals. As a consequence, quadrupole and octupole degrees of freedom can now be studied on an equal footing.
In this seminar I will review the symmetry conserving configuration mixing method (SCCM) that includes parity-breaking intrinsic states. Additionally, I will show some applications of the method in Barium and Xenon isotopes, and other selected nuclei.