g-boson excitations in the interacting boson model

K. Heyde, P. Van Isacker, M. Waroquier, G. Wenes, Y. Gigase, J. Stachel
Nuclear Physics A
398 (2), 235-252
Published while none of the authors were employed at the CMM


We have extended the interacting boson model (IBM) by including the g-boson degree of freedom. Schematic model calculations have been carried out in the two different limits: SU(5) and O(6). Particular applications have been carried out for 104Ru, a nucleus intermediate between SU(5) and O(6). In all cases, energy spectra, E2 and E4 transition rates have been studied in detail and compared with the most recent experimental data for 104Ru.