2019-08-18T06:44:30Z
https://digital.csic.es/dspace-oai/request
oai:digital.csic.es:10261/142780
2017-12-18T14:35:00Z
com_10261_135
com_10261_4
col_10261_388
Delion, D. S.
Dukelsky, Jorge
Schuck, P.
Passos, E. J. V. de
Krmpotic, F.
2017-01-20T08:33:29Z
2017-01-20T08:33:29Z
2000-09-11
Physical Review C - Nuclear Physics 62: 443111-4431115 (2000)
http://hdl.handle.net/10261/142780
10.1103/PhysRevC.62.044311
http://dx.doi.org/10.13039/501100004794
The self-consistent quasiparticle random phase approximation (SCQRPA) within the O(5) model in the coupled proton-neutron representation is analyzed. The exact vacuum wave function is used to compute all involved matrix elements. A stability analysis of the stationary points is performed. A phase transition from the uncoupled to the coupled stable proton-neutron regime beyond the QRPA breakdown value of the particle-particle strength is evidenced. The excitation energies are close to the lowest stable exact eigenvalues given by the diagonalization procedure for all cases. The conditions for which the Ikeda sum rule is fulfilled for all values of the particle-particle strength are pointed out. ©2000 American Physical Society
eng
openAccess
Proton-neutron self-consistent quasiparticle random phase approximation within the o(5) model
Artículo