Nonyrast high-spin states in N=Z ⁴⁴Ti

High-spin states have been investigated in the N-Z=22 nucleus ⁴⁴Ti. A newly observed set of states with J^π=6⁺ , 8 ⁺ , 10⁺ , and 12⁺ are assigned to be members of a band built upon an excited 0⁺ state. This band displays rotational-like level spacings, with a near-linear J(J+1) dependence. A third set of J^π=8⁺ , 10⁺ , and 12⁺ states have also been tentatively assigned and a negative-parity intruder band has been extended to J^π =13^-. Comparisons with df-shell model calculations show a good agreement for both energy levels and branching ratios. These calculations indicate that the excited 0⁺ band is dominated by a mixture of 8p-4h and 6p-2h configurations relative to ⁴⁰Ca.