Abstract
High-spin states in the doubly-odd nucleus have been studied by using the reactions at a beam energy of 112.5 MeV. coincidences, directional correlation ratio, and integrated polarization asymmetry ratio were measured by using the INGA array with 15 Compton-suppressed clover high-purity germanium (HPGe) detectors. Definite spins and parities were assigned to the observed levels. The high-spin structure is grouped into three bands (B1, B2, and B3), of which two (B1 and B2) exhibit the properties of magnetic rotation (MR). Tilted axis cranking calculations were carried out to explain the MR bands having large multiquasiparticle (qp) configurations. The calculated results explain the bands B1 and B2 very nicely, confirming the shears mechanism and suggest a crossing of two MR bands in both the cases. The crossing is from 6-qp to 8-qp in band B1 and from 4-qp to 6-qp in band B2, a very rare finding. A semiclassical model has also been used to obtain the particle-hole interaction strengths below the band crossing for the bands B1 and B2.
4 More- Received 20 June 2014
- Revised 22 November 2014
DOI:https://doi.org/10.1103/PhysRevC.90.064314
©2014 American Physical Society