Abstract
The [Formula Presented] isotopes of dysprosium and holmium have been investigated using the Eurogam II [Formula Presented]-ray spectrometer. A new collective rotational band has been observed in [Formula Presented] and the previously observed [Formula Presented] band in [Formula Presented] has been extended to much higher spin. Comparing these bands and similar bands in [Formula Presented] with the collective bands in the [Formula Presented] isotopes of Dy, Ho, and Er suggests that the first [Formula Presented] proton crossing is not observed at [Formula Presented] This observation has led to the reinterpretation of four of the previously observed bands in [Formula Presented] It is proposed that the low deformation collective bands in [Formula Presented] and [Formula Presented] are associated with a triaxial shape with large positive gamma and that they have a similar origin to the recently observed triaxial superdeformed bands in [Formula Presented].
Original language | English |
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Pages (from-to) | 9 |
Number of pages | 1 |
Journal | Physical Review C - Nuclear Physics |
Volume | 66 |
Issue number | 4 |
DOIs | |
State | Published - 2002 |
Externally published | Yes |