Enhancement of B(E2) collectivity in the sdg-interacting boson model

It is pointed out that the difficulty in boson models in explaining the lar ge B(E2) experimental data is not due to the lack of collectivity in boson model wavefunction. This long standing problem of reduction in collectivity of wavefunction in boson models can be solved by choosing an appropriate E 2 transition operator in the SU(3) limit of the sdg-interacting boson model . The ratio B(E2, L + 2 --> L)/B(E2, 2 --> 0) can be almost any large numbe r.