INVESTIGADORES
MONTANI Fernando Fabian
artículos
Título:
Extended proton-neutron quasiparticle random-phase approximation in a boson expansion method
Autor/es:
O. CIVITARESE; F. MONTANI; M. REBOIRO
Revista:
PHYS. REV. - C
Editorial:
AMER PHYSICAL SOC
Referencias:
Lugar: New York; Año: 1999 vol. 60 p. 24305 - 24309
ISSN:
0556-2813
Resumen:
The proton-neuron quasiparticle random phase approximation (pn-QRPA) is extended to nclude nect to leading order terms of the QRPA harmonic expansion. The procedure is tested for the case of a separable Hamiltonian in SO(5) symmetry representation. The pn-QRPA equation of motion is solved by using a boson expansion technique adapted to the treatment of proton-neutron correlations. The resulting wave functions are used to calculate the matrix elements of double-Fermi transitions.
