Rotational states in 171Hf

Alpha-particle irradiation of an enriched ytterbium target and ^10,11B irradiation of a holmium target were used to populate excited states in ¹⁷¹Hf. Rotational bands built on the 72+[633],52−[512]and12−[521] role=presentation>$\text{7}\text{2}{}^{\mathrm{+}}\text{[633],}\text{5}\text{2}{}^{\mathrm{-}}\text{[512]}\text{and}\text{1}\text{2}{}^{\mathrm{-}}\text{[521]}$$\text{7}\text{2}{}^{\mathrm{+}}\text{[633],}\text{5}\text{2}{}^{\mathrm{-}}\text{[512]}\text{and}\text{1}\text{2}{}^{\mathrm{-}}\text{[521]}$ Nilsson states were followed up to levels with spins 292,252and292 role=presentation>$\text{29}\text{2}\text{,}\text{25}\text{2}\text{and}\text{29}\text{2}$$\text{29}\text{2}\text{,}\text{25}\text{2}\text{and}\text{29}\text{2}$, respectively. The observed energy levels and transition probabilities are compared with the predictions of the rotational model and with the results of a Coriolis coupling calculation.