Rotation-aligned coupling in Fe-61

Journal article

New levels have been established above the 861-keV, 9/2+ isomeric state in Fe61. The observations can be reproduced satisfactorily by shell model calculations, but only after a significant lowering of the νg9/2 single-particle energy with respect to the value determined empirically from levels outside a Ca48 core. The results are also described well within the scope of the particle-triaxial-rotor model assuming a deformation β2~0.24. The present findings, together with the recently measured magnetic and quadrupole moments of this state, point toward a structure possibly associated with a prolate shape. © 2008 The American Physical Society.

Authors: Hoteling, N; Walters, W; Janssens, R; Broda, R; Carpenter, M

• Publication status: Published
• Journal: PHYSICAL REVIEW C
• Volume: 77
• Issue: 4
• Publication date: 2008-04-01
• DOI: 10.1103/PhysRevC.77.044314
• EISSN: 1089-490X
• ISSN: 0556-2813
• Language: English