Correlation between the quenching of total GT+ strength and the increase of E2 strength
arXiv:nucl-th/9301015 · doi:10.1016/0370-2693(93)91392-Z
Abstract
Relations between the total beta+ Gamow-Teller (GT+) strength and the E2 strength are further examined. It is found that in shell-model calculations for N=Z nuclei, in which changes in deformation are induced by varying the single-particle energies, the total GT+ or GT- strength decreases monotonically with increasing values of the B(E2) from the ground state to the first excited J=2+ state. Similar trends are also seen for the double GT transition amplitude (with some exceptions) and for the spin part of the total M1 strength as a function of B(E2).
11 pages and 3 figures (Figures will be sent on request)