Physics – Nuclear Physics – Nuclear Theory
Scientific paper
1996-07-04
Nucl.Phys.A612:223-238,1997
Physics
Nuclear Physics
Nuclear Theory
16 pages, latex, 3 postscript figures
Scientific paper
10.1016/S0375-9474(96)00407-1
The effect of the inclusion of ground state correlations into the QRPA equation of motion for the two-neutrino double beta ($\beta\beta_{2\nu}$) decay is carefully analyzed. The resulting model, called renormalized QRPA (RQRPA), does not collapse near the physical value of the nuclear force strength in the particle-particle channel, as happens with the ordinary QRPA. Still, the $\beta\beta_{2\nu}$ transition amplitude is only slightly less sensitive on this parameter in the RQRPA than that in the plain QRPA. It is argued that this fact reveals once more that the characteristic behaviour of the $\beta\beta_{2\nu}$ transition amplitude within the QRPA is not an artifact of the model, but a consequence of the partial restoration of the spin-isospin $SU(4)$ symmetry. It is shown that the price paid for bypassing the collapse in the RQRPA is the violation of the Ikeda sum rule.
de Passos Emerson José Veloso
Krmpotic Francisco
Kuo Thomas T. S.
Mariano Albert
Toledo Piza F. de R. de A.
No associations
LandOfFree
Violation of the Ikeda sum rule and the self-consistency in the renormalized quasiparticle random phase approximation and the nuclear double-beta decay does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Violation of the Ikeda sum rule and the self-consistency in the renormalized quasiparticle random phase approximation and the nuclear double-beta decay, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Violation of the Ikeda sum rule and the self-consistency in the renormalized quasiparticle random phase approximation and the nuclear double-beta decay will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-301938