Structure changes in Er-160 from low to ultrahigh spin

Ollier, J.; Simpson, J.; Riley, M. A.; Paul, E. S.; Wang, X.; Aguilar, A.; Carpenter, M. P.; Darby, I. G.; Hartley, D. J.; Janssens, R. V. F.; Kondev, F. G.; Lauritsen, T.; Nolan, P. J.; Petri, M.; Rees, J. M.; Rigby, S. V.; Teal, C.; Thomson, J.; Unsworth, C.; Zhu, S.; Kardan, A.; Ragnarsson, Ingemar

Structure changes in Er-160 from low to ultrahigh spin

Mark

Ollier, J. ; Simpson, J. ; Riley, M. A. ; Paul, E. S. ; Wang, X. ; Aguilar, A. ; Carpenter, M. P. ; Darby, I. G. ; Hartley, D. J. and Janssens, R. V. F. , et al. (2011) In Physical Review C (Nuclear Physics) 83(4).

Abstract: A spectroscopic investigation of the gamma decays from excited states in Er-160 has been performed in order to study the changing structural properties exhibited from low spin up toward ultrahigh spin (I similar to 60 h). The nucleus Er-160 was populated by the reaction Cd-116(Ca-48,4n gamma) at a beam energy of 215 MeV, and resulting gamma decays were studied using the Gammasphere spectrometer. New rotational structures and extensions to existing bands were observed, revealing a diverse range of quasiparticle configurations, which are discussed in terms of the cranked shell model. At spins around 50h there is evidence for oblate states close to the yrast line. Three rotational bands that have the characteristics of strongly deformed... (More); A spectroscopic investigation of the gamma decays from excited states in Er-160 has been performed in order to study the changing structural properties exhibited from low spin up toward ultrahigh spin (I similar to 60 h). The nucleus Er-160 was populated by the reaction Cd-116(Ca-48,4n gamma) at a beam energy of 215 MeV, and resulting gamma decays were studied using the Gammasphere spectrometer. New rotational structures and extensions to existing bands were observed, revealing a diverse range of quasiparticle configurations, which are discussed in terms of the cranked shell model. At spins around 50h there is evidence for oblate states close to the yrast line. Three rotational bands that have the characteristics of strongly deformed triaxial structures are observed, marking a return to collectivity at even higher spin. The high-spin data are interpreted within the framework of cranked Nilsson-Strutinsky calculations. (Less)

Please use this url to cite or link to this publication: https://lup.lub.lu.se/record/1965270

author

Ollier, J. ; Simpson, J. ; Riley, M. A. ; Paul, E. S. ; Wang, X. ; Aguilar, A. ; Carpenter, M. P. ; Darby, I. G. ; Hartley, D. J. and Janssens, R. V. F. , et al. (More)

Ollier, J. ; Simpson, J. ; Riley, M. A. ; Paul, E. S. ; Wang, X. ; Aguilar, A. ; Carpenter, M. P. ; Darby, I. G. ; Hartley, D. J. ; Janssens, R. V. F. ; Kondev, F. G. ; Lauritsen, T. ; Nolan, P. J. ; Petri, M. ; Rees, J. M. ; Rigby, S. V. ; Teal, C. ; Thomson, J. ; Unsworth, C. ; Zhu, S. ; Kardan, A. and Ragnarsson, Ingemar ^LU (Less)

organization

Mathematical Physics

publishing date

2011

type

Contribution to journal

publication status

published

subject

Physical Sciences

in

Physical Review C (Nuclear Physics)

volume

83

issue

4

article number

044309

publisher

American Physical Society

external identifiers

wos:000289518300003
scopus:79960931247

ISSN

0556-2813

DOI

10.1103/PhysRevC.83.044309

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

c9638f0e-4b15-41a5-905e-8017b7c5d91a (old id 1965270)

date added to LUP

2016-04-01 12:59:17

date last changed

2022-01-27 08:40:28

@article{c9638f0e-4b15-41a5-905e-8017b7c5d91a,
  abstract     = {{A spectroscopic investigation of the gamma decays from excited states in Er-160 has been performed in order to study the changing structural properties exhibited from low spin up toward ultrahigh spin (I similar to 60 h). The nucleus Er-160 was populated by the reaction Cd-116(Ca-48,4n gamma) at a beam energy of 215 MeV, and resulting gamma decays were studied using the Gammasphere spectrometer. New rotational structures and extensions to existing bands were observed, revealing a diverse range of quasiparticle configurations, which are discussed in terms of the cranked shell model. At spins around 50h there is evidence for oblate states close to the yrast line. Three rotational bands that have the characteristics of strongly deformed triaxial structures are observed, marking a return to collectivity at even higher spin. The high-spin data are interpreted within the framework of cranked Nilsson-Strutinsky calculations.}},
  author       = {{Ollier, J. and Simpson, J. and Riley, M. A. and Paul, E. S. and Wang, X. and Aguilar, A. and Carpenter, M. P. and Darby, I. G. and Hartley, D. J. and Janssens, R. V. F. and Kondev, F. G. and Lauritsen, T. and Nolan, P. J. and Petri, M. and Rees, J. M. and Rigby, S. V. and Teal, C. and Thomson, J. and Unsworth, C. and Zhu, S. and Kardan, A. and Ragnarsson, Ingemar}},
  issn         = {{0556-2813}},
  language     = {{eng}},
  number       = {{4}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review C (Nuclear Physics)}},
  title        = {{Structure changes in Er-160 from low to ultrahigh spin}},
  url          = {{http://dx.doi.org/10.1103/PhysRevC.83.044309}},
  doi          = {{10.1103/PhysRevC.83.044309}},
  volume       = {{83}},
  year         = {{2011}},
}

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Structure changes in Er-160 from low to ultrahigh spin