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High-spin structure in Er-157 up to and above band termination

Evans, AO ; Paul, ES ; Simpson, J ; Riley, MA ; Appelbe, DE ; Campbell, DB ; Choy, PTW ; Clark, RM ; Cromaz, M and Fallon, P , et al. (2006) In Physical Review C (Nuclear Physics) 73(6).
Abstract
The high-spin structure of Er-157 has been greatly expanded using the Gammasphere spectrometer to investigate the Cd-114(Ca-48,5n) reaction at 215 MeV. Many new transitions have been placed in a greatly augmented level scheme up to spin 40h with many collective rotational sequences established. With increasing angular momentum, this nucleus undergoes a Coriolis-induced shape transition from a deformed state of collective rotation to a noncollective configuration. This transition manifests itself as favored band termination near I=45h in three rotational structures. Many weakly populated states lying at high excitation energy that decay into the terminating states have been discovered. Cranked-Nilsson-Strutinsky calculations suggest that... (More)
The high-spin structure of Er-157 has been greatly expanded using the Gammasphere spectrometer to investigate the Cd-114(Ca-48,5n) reaction at 215 MeV. Many new transitions have been placed in a greatly augmented level scheme up to spin 40h with many collective rotational sequences established. With increasing angular momentum, this nucleus undergoes a Coriolis-induced shape transition from a deformed state of collective rotation to a noncollective configuration. This transition manifests itself as favored band termination near I=45h in three rotational structures. Many weakly populated states lying at high excitation energy that decay into the terminating states have been discovered. Cranked-Nilsson-Strutinsky calculations suggest that the levels that feed the terminating states arise from weakly collective configurations that break the Z=64 semimagic core. (Less)
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review C (Nuclear Physics)
volume
73
issue
6
publisher
American Physical Society
external identifiers
  • wos:000238697500012
  • scopus:33745154882
ISSN
0556-2813
DOI
10.1103/PhysRevC.73.064303
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)
id
a4263a21-fcc1-45e3-afb7-946e56b87691 (old id 404366)
date added to LUP
2016-04-01 17:09:44
date last changed
2022-04-15 17:37:58
@article{a4263a21-fcc1-45e3-afb7-946e56b87691,
  abstract     = {{The high-spin structure of Er-157 has been greatly expanded using the Gammasphere spectrometer to investigate the Cd-114(Ca-48,5n) reaction at 215 MeV. Many new transitions have been placed in a greatly augmented level scheme up to spin 40h with many collective rotational sequences established. With increasing angular momentum, this nucleus undergoes a Coriolis-induced shape transition from a deformed state of collective rotation to a noncollective configuration. This transition manifests itself as favored band termination near I=45h in three rotational structures. Many weakly populated states lying at high excitation energy that decay into the terminating states have been discovered. Cranked-Nilsson-Strutinsky calculations suggest that the levels that feed the terminating states arise from weakly collective configurations that break the Z=64 semimagic core.}},
  author       = {{Evans, AO and Paul, ES and Simpson, J and Riley, MA and Appelbe, DE and Campbell, DB and Choy, PTW and Clark, RM and Cromaz, M and Fallon, P and Gorgen, A and Joss, DT and Lee, IY and Macchiavelli, AO and Nolan, PJ and Pipidis, A and Ward, D and Ragnarsson, Ingemar}},
  issn         = {{0556-2813}},
  language     = {{eng}},
  number       = {{6}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review C (Nuclear Physics)}},
  title        = {{High-spin structure in Er-157 up to and above band termination}},
  url          = {{http://dx.doi.org/10.1103/PhysRevC.73.064303}},
  doi          = {{10.1103/PhysRevC.73.064303}},
  volume       = {{73}},
  year         = {{2006}},
}