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Shell-model Influence in the Rotational Nucleus 86Mo

Rudolph, Dirk LU ; Gross, C. J.; Akovali, Y. A.; Baktash, C.; Doring, J.; Durham, F. E.; Hua, P. F.; Johns, G. D.; Korolija, M. and LaFosse, D. R., et al. (1996) In Physical Review C (Nuclear Physics) 54(1). p.117-124
Abstract
High-spin states in Mo-86 were studied by means of the fusion evaporation reaction Ni-58(S-32,2p2n) Mo-86 at 135 MeV beam energy. Charged-particle-gamma gamma and -gamma gamma gamma coincidences recorded with the early implementation of the GAMMASPHERE array and the MICROBALL charged-particle detection system were used to largely extend the level scheme of the T-tau=1 nucleus Mo-86 to a possible spin of I=24h at 13 MeV excitation energy. The excitation scheme is compared to neighboring nuclei. There is evidence for enhanced shell-model influence in the 4 quasiparticle region (I=12-16h). The observed (pi=+,alpha=0) sequence at spin I greater than or equal to 16 h appears to be associated with a triaxial collective rotational band. This... (More)
High-spin states in Mo-86 were studied by means of the fusion evaporation reaction Ni-58(S-32,2p2n) Mo-86 at 135 MeV beam energy. Charged-particle-gamma gamma and -gamma gamma gamma coincidences recorded with the early implementation of the GAMMASPHERE array and the MICROBALL charged-particle detection system were used to largely extend the level scheme of the T-tau=1 nucleus Mo-86 to a possible spin of I=24h at 13 MeV excitation energy. The excitation scheme is compared to neighboring nuclei. There is evidence for enhanced shell-model influence in the 4 quasiparticle region (I=12-16h). The observed (pi=+,alpha=0) sequence at spin I greater than or equal to 16 h appears to be associated with a triaxial collective rotational band. This interpretation is supported by calculations within the configuration-dependent shell-correction approach with the cranked Nilsson potential. (Less)
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published
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Physical Review C (Nuclear Physics)
volume
54
issue
1
pages
117 - 124
publisher
American Physical Society
external identifiers
  • scopus:16144368047
ISSN
0556-2813
DOI
10.1103/PhysRevC.54.117
language
English
LU publication?
no
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f30605a2-77ed-4ba0-9a23-fef8e84e9051 (old id 3964507)
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http://link.aps.org/doi/10.1103/PhysRevC.54.117
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2013-08-13 18:50:40
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@article{f30605a2-77ed-4ba0-9a23-fef8e84e9051,
  abstract     = {High-spin states in Mo-86 were studied by means of the fusion evaporation reaction Ni-58(S-32,2p2n) Mo-86 at 135 MeV beam energy. Charged-particle-gamma gamma and -gamma gamma gamma coincidences recorded with the early implementation of the GAMMASPHERE array and the MICROBALL charged-particle detection system were used to largely extend the level scheme of the T-tau=1 nucleus Mo-86 to a possible spin of I=24h at 13 MeV excitation energy. The excitation scheme is compared to neighboring nuclei. There is evidence for enhanced shell-model influence in the 4 quasiparticle region (I=12-16h). The observed (pi=+,alpha=0) sequence at spin I greater than or equal to 16 h appears to be associated with a triaxial collective rotational band. This interpretation is supported by calculations within the configuration-dependent shell-correction approach with the cranked Nilsson potential.},
  author       = {Rudolph, Dirk and Gross, C. J. and Akovali, Y. A. and Baktash, C. and Doring, J. and Durham, F. E. and Hua, P. F. and Johns, G. D. and Korolija, M. and LaFosse, D. R. and Lee, I. Y. and Macchiavelli, A. O. and Rathbun, W. and Sarantites, D. G. and Stracener, D. W. and Tabor, S. L. and Afanasjev, A. V. and Ragnarsson, I.},
  issn         = {0556-2813},
  language     = {eng},
  number       = {1},
  pages        = {117--124},
  publisher    = {American Physical Society},
  series       = {Physical Review C (Nuclear Physics)},
  title        = {Shell-model Influence in the Rotational Nucleus 86Mo},
  url          = {http://dx.doi.org/10.1103/PhysRevC.54.117},
  volume       = {54},
  year         = {1996},
}