%0 Journal Article %T An intrinsic state for an extended version of the interacting boson model %A J. E. Garcia-Ramos %A J. M. Arias %A J. Dukelsky %A P. Van Isacker %J Physics %D 1999 %I arXiv %R 10.1103/PhysRevC.61.034305 %X An intrinsic-state formalism for IBM-4 is presented. A basis of deformed bosons is introduced which allows the construction of a general trial wave function which has Wigner's spin-isospin SU(4) symmetry as a particular limit. Intrinsic-state calculations are compared with exact ones showing good agreement. %U http://arxiv.org/abs/nucl-th/9907072v2