A simple description of the states $0^{+}$ and $2^{+}$ in ${}^{168}Er$

A. A. Raduta, F. D. Aaron

A sixth-order quadrupole boson Hamiltonian is used to describe 26 states $0^{+}$ and 67 states $2^{+}$ which have been recently identified in ${}^{168}Er$. Two closed expressions are alt…