DYNAMIC DEFORMATION THEORY AND MULTIPHONON VIBRATIONAL BANDS IN GD-154

Dynamics deformation theory based on a pairing plus quadrupole model (DPPQ model) is extended to 25 levels belonging to various multiphonon vibrational bands in **1**5**4Gd. Although the calculated excited band energies are too high by factors of 1. 4 - 1. 7, there is generally reasonable agreement with the experimental energies, B(E2) values, magnetic moments, E2-M1 mixing ratios and E0 moments. Many new values are predicted. A brief comparison with some results derived from a new version of dynamic deformation theory, the so-called DNSB model, is also given.