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Smooth terminating bands in Te-112: Particle-hole induced collectivity

Paul, E. S.; Starosta, K.; Evans, A. O.; Boston, A. J.; Chantler, H. J.; Chiara, C. J.; Devlin, M.; Fletcher, A. M.; Fossan, D. B. and LaFosse, D. R., et al. (2007) In Physical Review C (Nuclear Physics) 75(1).
Abstract
The Gammasphere spectrometer, in conjunction with the Microball charged-particle array, was used to investigate high-spin states in Te-112 via Ni-58(Ni-58, 4p gamma) reactions at 240 and 250 MeV. Several smooth terminating bands were established, and lifetime measurements were performed for the strongest one using the Doppler-shift attenuation method. Results obtained in the spin range 18-32h yield a transition quadrupole moment of 4.0 +/- 0.5eb, which corresponds to a quadrupole deformation epsilon(2)=0.26 +/- 0.03; this value is significantly larger than the ground-state deformation of tellurium isotopes. It was also possible to extract a transition quadrupole moment for the yrast band in Xe-114, produced via the 58Ni (58Ni, 2p gamma)... (More)
The Gammasphere spectrometer, in conjunction with the Microball charged-particle array, was used to investigate high-spin states in Te-112 via Ni-58(Ni-58, 4p gamma) reactions at 240 and 250 MeV. Several smooth terminating bands were established, and lifetime measurements were performed for the strongest one using the Doppler-shift attenuation method. Results obtained in the spin range 18-32h yield a transition quadrupole moment of 4.0 +/- 0.5eb, which corresponds to a quadrupole deformation epsilon(2)=0.26 +/- 0.03; this value is significantly larger than the ground-state deformation of tellurium isotopes. It was also possible to extract a transition quadrupole moment for the yrast band in Xe-114, produced via the 58Ni (58Ni, 2p gamma) reaction. A value of 3.0 +/- 0.5eb was found in the spin range 16-24h, which corresponds to a quadrupole deformation epsilon(2)=0.19 +/- 0.03. Cranked Nilsson-Strutinsky calculations are used to interpret the results. (Less)
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Physical Review C (Nuclear Physics)
volume
75
issue
1
publisher
American Physical Society
external identifiers
  • wos:000243896000025
  • scopus:33846342560
ISSN
0556-2813
DOI
10.1103/PhysRevC.75.014308
language
English
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yes
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6bf7fb5a-b495-4e0b-8bfd-77221b1f5b48 (old id 674938)
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2007-12-14 15:53:19
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@article{6bf7fb5a-b495-4e0b-8bfd-77221b1f5b48,
  abstract     = {The Gammasphere spectrometer, in conjunction with the Microball charged-particle array, was used to investigate high-spin states in Te-112 via Ni-58(Ni-58, 4p gamma) reactions at 240 and 250 MeV. Several smooth terminating bands were established, and lifetime measurements were performed for the strongest one using the Doppler-shift attenuation method. Results obtained in the spin range 18-32h yield a transition quadrupole moment of 4.0 +/- 0.5eb, which corresponds to a quadrupole deformation epsilon(2)=0.26 +/- 0.03; this value is significantly larger than the ground-state deformation of tellurium isotopes. It was also possible to extract a transition quadrupole moment for the yrast band in Xe-114, produced via the 58Ni (58Ni, 2p gamma) reaction. A value of 3.0 +/- 0.5eb was found in the spin range 16-24h, which corresponds to a quadrupole deformation epsilon(2)=0.19 +/- 0.03. Cranked Nilsson-Strutinsky calculations are used to interpret the results.},
  author       = {Paul, E. S. and Starosta, K. and Evans, A. O. and Boston, A. J. and Chantler, H. J. and Chiara, C. J. and Devlin, M. and Fletcher, A. M. and Fossan, D. B. and LaFosse, D. R. and Lane, G. J. and Lee, I. Y. and Macchiavelli, A. O. and Nolan, P. J. and Sarantites, D. G. and Sears, J. M. and Semple, A. T. and Smith, J. F. and Vaman, C. and Afanasjev, A. V. and Ragnarsson, Ingemar},
  issn         = {0556-2813},
  language     = {eng},
  number       = {1},
  publisher    = {American Physical Society},
  series       = {Physical Review C (Nuclear Physics)},
  title        = {Smooth terminating bands in Te-112: Particle-hole induced collectivity},
  url          = {http://dx.doi.org/10.1103/PhysRevC.75.014308},
  volume       = {75},
  year         = {2007},
}