The γ vibrational states in odd-mass deformed nuclei are studied within the multiphonon method. Special attention is paid to low-energy multiphonon states in order to see if the anharmonicities observed in even-even nuclei, in which the first vibrational state ${\mathit{K}}^{\mathrm{\pi }}$=$2^{+}$ appears well below the energy gap, are also found in the odd-A neighboring nuclei. © 1996 The American Physical Society.

• Received 29 January 1996

DOI:https://doi.org/10.1103/PhysRevC.54.189