Possible deformation evolution in the pi i(13/2) structure of Re-171

作者：Hartley D J^*; Pedicini E E; Janssens R V F; Riedinger L L; Riley M A; Wang X; Miller S; Ayangeakaa A D; Carpenter M P; Carroll J J; Cavey J; Chiara C J; Chowdhury P; Garg U; Hota S S; Jackson E G; Kondev F G; Lauritsen T; Litz M; Ma W C; Matta J; Paul E S; Simpson J; Vanhoy J R; Zhu S

来源：Physical Review C, 2013, 88(4): 044323.

DOI：10.1103/PhysRevC.88.044323

The phenomenon of wobbling can only occur for a nuclear shape with stable triaxial deformation. To date, only a few examples of this exotic collective mode have been observed in lutetium and tantalum isotopes. A search for a wobbling sequence was performed in Re-171 to determine if this feature can be observed in Z %26gt; 73 nuclei. No evidence was found for wobbling; however, an interaction between the pi i(13/2) sequence and another positive-parity band may give an indication on why wobbling may not occur in this nucleus. The level scheme for Re-171 was significantly extended and interpretations for the decay sequences are proposed within the context of the cranked shell model.

• 出版日期2013-10-21
• 单位中国人民解放军海军大连舰艇学院