Beyond band termination in Er-157 and the search for wobbling excitations in strongly deformed Hf-174
(2005) In Journal of Physics G: Nuclear and Particle Physics 31(10). p.1735-1740- Abstract
- High-spin terminating bands in heavy nuclei were first identified in nuclei around Er-158(90). While examples of special terminating states have been identified in a number of erbium isotopes, almost nothing is known about the states lying beyond band termination. In the present work the high-spin structure of Er-157 has been studied using the Gammasphere spectrometer. The subject of triaxial superdeformation and 'wobbling' modes in Lu nuclei has rightly attracted a great deal of attention. Very recently, four strongly or superdeformed (SD) sequences have been observed in Hf-174 and ultimate cranker calculations predict, such structures may have significant triaxial deformation. We have performed two experiments in an attempt to verify the... (More)
- High-spin terminating bands in heavy nuclei were first identified in nuclei around Er-158(90). While examples of special terminating states have been identified in a number of erbium isotopes, almost nothing is known about the states lying beyond band termination. In the present work the high-spin structure of Er-157 has been studied using the Gammasphere spectrometer. The subject of triaxial superdeformation and 'wobbling' modes in Lu nuclei has rightly attracted a great deal of attention. Very recently, four strongly or superdeformed (SD) sequences have been observed in Hf-174 and ultimate cranker calculations predict, such structures may have significant triaxial deformation. We have performed two experiments in an attempt to verify the possible triaxial nature of these bands. A lifetime measurement was performed to confirm the large (and similar) deformation of the bands. In addition, a high-statistics, thin-target experiment was run to search for linking transitions between the SD bands and possible wobbling modes. (Less)
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- organization
- publishing date
- 2005
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Physics G: Nuclear and Particle Physics
- volume
- 31
- issue
- 10
- pages
- 1735 - 1740
- publisher
- IOP Publishing
- external identifiers
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- wos:000232575600066
- scopus:25444447399
- ISSN
- 0954-3899
- DOI
- 10.1088/0954-3899/31/10/064
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Mathematical Physics (Faculty of Technology) (011040002), Physics, Faculty of Technology (011013200)
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@article{aee3c792-bc22-4622-af7e-8964ae784b47,
abstract = {{High-spin terminating bands in heavy nuclei were first identified in nuclei around Er-158(90). While examples of special terminating states have been identified in a number of erbium isotopes, almost nothing is known about the states lying beyond band termination. In the present work the high-spin structure of Er-157 has been studied using the Gammasphere spectrometer. The subject of triaxial superdeformation and 'wobbling' modes in Lu nuclei has rightly attracted a great deal of attention. Very recently, four strongly or superdeformed (SD) sequences have been observed in Hf-174 and ultimate cranker calculations predict, such structures may have significant triaxial deformation. We have performed two experiments in an attempt to verify the possible triaxial nature of these bands. A lifetime measurement was performed to confirm the large (and similar) deformation of the bands. In addition, a high-statistics, thin-target experiment was run to search for linking transitions between the SD bands and possible wobbling modes.}},
author = {{Riley, M A and Djongolov, M K and Evans, A O and Hartley, D J and Janssens, R V F and Paul, E S and Simpson, J and Aguilar, A A and Appelbe, D E and Bingham, C R and Campbell, D B and Carpenter, M P and Chowdhury, P and Choy, P T W and Clark, R M and Cromaz, M and Cullen, D M and Danchev, M and Dracoulis, G D and Fallon, P and Gorgen, A and Hagemann, G B and Joss, D T and Goon, J and Kaye, R A and Khoo, TL and Kondev, F G and Laird, R W and Lagergren, K and Lauritsen, T and Macchiavelli, A O and McClain, B and Moore, EF and Mukherjee, G and Ngijoi-Yogo, E and Nolan, P J and Park, H I and Pipidis, A and Riedinger, L L and Sletten, G and Tandel, S K and Walker, P M and Ward, D and Ragnarsson, Ingemar and Saric, Fikret and Zhang, J Y}},
issn = {{0954-3899}},
language = {{eng}},
number = {{10}},
pages = {{1735--1740}},
publisher = {{IOP Publishing}},
series = {{Journal of Physics G: Nuclear and Particle Physics}},
title = {{Beyond band termination in Er-157 and the search for wobbling excitations in strongly deformed Hf-174}},
url = {{http://dx.doi.org/10.1088/0954-3899/31/10/064}},
doi = {{10.1088/0954-3899/31/10/064}},
volume = {{31}},
year = {{2005}},
}