Collective structures up to spin ∼ 65h in the N 90 isotones 158Er and 157Ho
(2012) Rutherford Centennial Conference on Nuclear Physics In Journal of Physics: Conference Series 381(1).- Abstract
A new collective band with high dynamic moment of inertia in 158Er at spins beyond band termination has been found in addition to the two previously reported ones. The measured transition quadrupole moments (Qt) of these three bands are very similar. These three bands have been suggested to possess a triaxial strongly deformed shape, based on comparisons with calculations using the cranked Nilsson-Strutinsky model and with tilted axis cranking calculations using the Skyrme-Hartree-Fock model. In addition, three collective bands with similar high dynamic moments of inertia, tentatively assigned to 157Ho, have been observed. Thus, it is suggested that all these structures share a common underlying... (More)
A new collective band with high dynamic moment of inertia in 158Er at spins beyond band termination has been found in addition to the two previously reported ones. The measured transition quadrupole moments (Qt) of these three bands are very similar. These three bands have been suggested to possess a triaxial strongly deformed shape, based on comparisons with calculations using the cranked Nilsson-Strutinsky model and with tilted axis cranking calculations using the Skyrme-Hartree-Fock model. In addition, three collective bands with similar high dynamic moments of inertia, tentatively assigned to 157Ho, have been observed. Thus, it is suggested that all these structures share a common underlying character and that they are most likely associated with triaxial strongly deformed minima which are predicted to be close to the yrast line at spin 50 - 70h.
(Less)
- author
- organization
- publishing date
- 2012
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Physics: Conference Series
- volume
- 381
- issue
- 1
- article number
- 012065
- publisher
- IOP Publishing
- conference name
- Rutherford Centennial Conference on Nuclear Physics
- conference location
- Manchester, United Kingdom
- conference dates
- 2011-08-08 - 2011-08-12
- external identifiers
-
- scopus:84867967852
- ISSN
- 1742-6588
- DOI
- 10.1088/1742-6596/381/1/012065
- language
- English
- LU publication?
- yes
- id
- 38dbcf29-e114-4adc-b038-155e6212cef2
- date added to LUP
- 2023-12-27 10:51:40
- date last changed
- 2023-12-27 10:53:05
@article{38dbcf29-e114-4adc-b038-155e6212cef2, abstract = {{<p>A new collective band with high dynamic moment of inertia in <sup>158</sup>Er at spins beyond band termination has been found in addition to the two previously reported ones. The measured transition quadrupole moments (Q<sub>t</sub>) of these three bands are very similar. These three bands have been suggested to possess a triaxial strongly deformed shape, based on comparisons with calculations using the cranked Nilsson-Strutinsky model and with tilted axis cranking calculations using the Skyrme-Hartree-Fock model. In addition, three collective bands with similar high dynamic moments of inertia, tentatively assigned to <sup>157</sup>Ho, have been observed. Thus, it is suggested that all these structures share a common underlying character and that they are most likely associated with triaxial strongly deformed minima which are predicted to be close to the yrast line at spin 50 - 70h.</p>}}, author = {{Wang, X. and Riley, M. A. and Simpson, J. and Paul, E. S. and Janssens, R. V.F. and Ayangeakaa, A. D. and Boston, H. C. and Carpenter, M. P. and Chiara, C. J. and Garg, U. and Hampson, P. and Hartley, D. J. and Hoffman, C. R. and Judson, D. S. and Kondev, F. G. and Lauritsen, T. and Lumley, N. M. and Matta, J. and Miller, S. and Nolan, P. J. and Oilier, J. and Petri, M. and Radford, D. C. and Rees, J. M. and Revill, J. P. and Riedinger, L. L. and Rigby, S. V. and Unsworth, C. and Zhu, S. and Ragnarsson, I.}}, issn = {{1742-6588}}, language = {{eng}}, number = {{1}}, publisher = {{IOP Publishing}}, series = {{Journal of Physics: Conference Series}}, title = {{Collective structures up to spin ∼ 65h in the N 90 isotones <sup>158</sup>Er and <sup>157</sup>Ho}}, url = {{http://dx.doi.org/10.1088/1742-6596/381/1/012065}}, doi = {{10.1088/1742-6596/381/1/012065}}, volume = {{381}}, year = {{2012}}, }