Deformation of rotational structures in {sup 73}Kr and {sup 74}Rb: Probing the additivity principle at triaxial shapes

Journal Article · Mon Sep 15 00:00:00 EDT 2008 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.78.034312· OSTI ID:21192194

Johnston-Theasby, F; Jenkins, D G; Joshi, P; Wadsworth, R ^[1]; Afanasjev, A V ^[2]; Andreoiu, C; Svensson, C E ^[3]; Austin, R A. E. ^[4]; Carpenter, M P; Greene, J; Moore, F; Mukherjee, G; Seweryniak, D ^[5]; Dashdorj, D ^[6]; Freeman, S J ^[7]; Garrett, P E ^[3]; Goergen, A ^[8]; Macchiavelli, A O; Ward, D ^[9]; Reviol, W ^[10]

---

1. Department of Physics, University of York, Heslington, York YO10 5DD (United Kingdom)
2. Department of Physics and Astronomy, Mississippi State University, Mississippi 39762 (United States)
3. Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1 (Canada)
4. Department of Physics and Astronomy, McMaster University, Hamilton, Ontario L8S 4K1 (Canada)
5. Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
6. North Carolina State University, Raleigh, North Carolina 27695 (United States)
7. Department of Physics and Astronomy, University of Manchester, Manchester M15 9PL (United Kingdom)
8. CEA Saclay, IRFU/Service de Physique Nucleaire, F-91191 Gif-sur-Yvette (France)
9. Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
10. Department of Chemistry, Washington University, St. Louis, Missouri 63130 (United States)

Lifetimes have been deduced in the intermediate/high-spin range for the three known rotational bands in {sup 73}Kr and the T=0 band in {sup 74}Rb using the residual Doppler shift method. This has enabled relative transition quadrupole moments to be studied for the first time in triaxial nuclei as a function of spin. The data suggest that the additivity principle for transition quadrupole moments is violated, a result that is in disagreement with predictions from cranked Nilsson-Strutinsky and cranked relativistic mean-field theory calculations. The reasons for the discrepancy are not understood but may indicate that important correlations are missing from the models.

• OSTI ID: 21192194
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 78, Issue 3; Other Information: DOI: 10.1103/PhysRevC.78.034312; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CORRELATIONS
DEFORMATION
DOPPLER EFFECT
FORECASTING
KRYPTON 73
LIFETIME
MEAN-FIELD THEORY
QUADRUPOLE MOMENTS
RELATIVISTIC RANGE
ROTATIONAL STATES
RUBIDIUM 74
SPECTRAL SHIFT
SPIN