Exhaustive investigation of nuclear properties within a microscopic multiphonon approach
by
Giovanni De Gregorio(NA)
→
Europe/Rome
0Ma03 (Dipartimento di Fisica "Ettore Pancini")
0Ma03
Dipartimento di Fisica "Ettore Pancini"
Complesso Universitario di Monte Sant'Angelo, Ed. 6, via Cintia, 80126 Napoli
Description
Several extensions of the random-phase approximation have been
adopted to study the fragmentation of the giant dipole resonance and,
in general, the anharmonic features of the nuclear spectra.
We have proposed an equation of motion phonon method (EMPM) which
generates a multiphonon basis through the construction and solution of a
set of equations of motion and, then, adopts such a basis to diagonalize a
realistic Hamiltonian. We have applied the EMPM to the neutron rich
even-even nuclei 20O, 132Sn, and 208Pb.
The method has been recently extended to odd nuclei. A basis of
particle-core states up to three phonons was generated using a
Hartree-Fock basis derived from a chiral potential. The generation of the
full spectra complemented with the calculation of moments, transition
strengths and cross sections provides a complete description of the
properties of the two A=17 isobars.
