Self consistent random phase approximation within the O(5) model and Fermi transitions
Nuclear Theory
2009-10-31 v1
Abstract
Self Consistent Quasiparticle Random Phase Approximation (SCQRPA) is considered in application to the Fermi transitions within the O(5) model. It is demonstrated that SCQRPA improves on renormalized QRPA (RQRPA), a method that has recently become rather popular in this context. The analytical form of the SCQRPA vacuum is used to evaluate all the matrix elements. The SCQRPA results show a general trend similar to the exact solutions. The necessity to change the single particle basis beyond the transition point, and to include the proton-proton and neutron-neutron channels in the QRPA operator, in addition to the proton-neutron one, is pointed out.
Cite
@article{arxiv.nucl-th/9805038,
title = {Self consistent random phase approximation within the O(5) model and Fermi transitions},
author = {F. Krmpotic and E. J. V. de Passos and D. S. Delion and J. Dukelsky and P. Schuck},
journal= {arXiv preprint arXiv:nucl-th/9805038},
year = {2009}
}
Comments
28 pages, latex, 9 postSript figures, to be published in Nucl. Phys. A