Multiple Band Crossings inEr164

Abstract
High-spin states in Er164 have been populated by the reaction Nd150(O18, 4n)Er164. In addition to the lowest even-spin superband we present the first evidence for the lowest odd-spin and the second lowest even-spin superbands. We also observe the first example of the intersection of the γ-vibrational band with these superbands. The rotation-alignment model can explain the observed pattern of behavior.