Two isomeric states have been identified in 255Lr. The decay of the isomers populates rotational structures. Comparison with macroscopic-microscopic calculations suggests that the lowest observed sequence is built upon the 9/2+ Nilsson state. However, microscopic cranked relativistic Hartree-Bogoliubov (CRHB) calculations do not reproduce the moment of inertia within typical accuracy. This is a clear challenge to theories describing the heaviest elements.
Copyright © 2009 The American Physical Society. This article first appeared in Physical Review C 80, no. 3 (September 29, 2009): 034324: 1-34324: 4. doi:10.1103/PhysRevC.80.034324.
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Jeppesen, H. B., R. M. Clark, K. E. Gregorich, A. V. Afanasjev, M. N. Ali, J. M. Allmond, C. W. Beausang, M. Cromaz, M. A. Deleplanque, I. Dragojević, J. Dvorak, P. A. Ellison, P. Fallon, M. A. Garcia, J. M. Gates, S. Gros, I. Y. Lee, A. O. Macchiavelli, S. L. Nelson, H. Nitsche, L. Stavsetra, F. S. Stephens, and M. Wiedeking. "High-K Multi-quasiparticle States and Rotational Bands in 255103Lr." Physical Review C 80, no. 3 (September 29, 2009): 034324: 1-34324: 4. doi:10.1103/PhysRevC.80.034324.