High-spin states in odd-odd 164Lu

Band crossings inTa166

“…However, the alignment appears to increase with rotational frequency in the νE configuration of 165 Hf; this may account for the apparent inconsistency. In addition, a similar deviation was noted for the πh 11/2 νE structure in the isotone 164 Lu [15]. A high-frequency crossing is present near 0.46 MeV, likely associated with the CD crossing (alignment of the third and fourth lowest i 13/2 quasineutrons) because a similar crossing was identified [9] near this frequency in the νE configuration of 165 Hf [see Fig.…”

“…The number of suggested E1 transitions linking band 2 to band 1 is unusual, especially considering that no such E1 γ rays were reported between the two configurations in 164 Lu [15]. The B(E1) strengths for the strongest lines could be deduced by calculating the B(E1)/B(E2) ratios from the extracted branching ratios while assuming the rotational form of the B(E2) rate [11].…”

High-spin states and signature inversion in odd-odd Lu168

“…Another proton orbital near Fermi surface is the negativeparity π [523]7/2 − , which is calculated about 300 keV higher than the π [402]5/2 + orbital at hω 0.3 MeV, and exhibits significant splitting above this frequency. Bands associated with this orbital have been observed in 164 Tm [36] and 164 Lu [43]. Their properties are substantially different than those of Bands 6 and 8, and so the π [523]7/2 − orbital can be ruled out.…”