It is shown that all the rotational bands in ${}^{44}\mathrm{Ti}$ at low and high excitation energies can be well explained in an $\alpha$-cluster model in which the $\alpha$-like excitation of the core, ${}^{40}\mathrm{Ca}$, is incorporated by employing density-dependent M3Y (DDM3Y) double folding potentials.

• Received 2 December 1997

DOI:https://doi.org/10.1103/PhysRevC.57.2760