Abstract
Lifetimes of high-spin states in ,161Yb have been measured by the recoil-distance technique and, from these, changes in the nuclear shape due to the alignment of quasiparticles have been deduced. It is observed that the addition of the favored quasineutron causes a reduction in collectivity at large rotational frequencies. This reduction is interpreted as due to induced triaxiality and is much larger than predicted by theory.
- Received 10 December 1984
DOI:https://doi.org/10.1103/PhysRevC.31.1057
©1985 American Physical Society