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Six-quasiparticle isomer in Nd-140

Petrache, C. M. ; Bark, R. A. ; Murray, S. T. H. ; Fantuzi, M. ; Lawrie, E. A. ; Lang, S. ; Lawrie, J. J. ; Maliage, S. M. ; Mengoni, D. and Mullins, S. M. , et al. (2006) In Physical Review C (Nuclear Physics) 74(3).
Abstract
A search for isomeric states was performed in the nucleus Nd-140(60)80 using in-beam gamma-ray spectroscopy and the Te-126(O-18,4n) reaction. Prompt and delayed gamma-ray coincidences were measured with the AFRODITE spectrometer using the pulsed beam delivered by the Separated Sector Cyclotron of iThemba LABS. One new isomer was identified, with spin-parity I-pi=20(+) and lifetime T-1/2 >= 400 ns, at an excitation energy E-x=7430 keV. The lifetime of the 10(+) isomer at E-x=3619 keV was determined to be 32.9(1.8) ns, confirming the previously reported value. The configuration of the I-pi=20(+) isomer is assigned based on configuration-dependent cranked Nilsson-Strutinsky (CNS) calculations as a state pi(d(5/2)g(7/2))(10)(+-4)circle... (More)
A search for isomeric states was performed in the nucleus Nd-140(60)80 using in-beam gamma-ray spectroscopy and the Te-126(O-18,4n) reaction. Prompt and delayed gamma-ray coincidences were measured with the AFRODITE spectrometer using the pulsed beam delivered by the Separated Sector Cyclotron of iThemba LABS. One new isomer was identified, with spin-parity I-pi=20(+) and lifetime T-1/2 >= 400 ns, at an excitation energy E-x=7430 keV. The lifetime of the 10(+) isomer at E-x=3619 keV was determined to be 32.9(1.8) ns, confirming the previously reported value. The configuration of the I-pi=20(+) isomer is assigned based on configuration-dependent cranked Nilsson-Strutinsky (CNS) calculations as a state pi(d(5/2)g(7/2))(10)(+-4)circle times nu(h(11/2)(-2))(10)(+), with the spin vectors of the six holes in the Gd-146(64)82 core fully aligned. (Less)
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Physical Review C (Nuclear Physics)
volume
74
issue
3
publisher
American Physical Society
external identifiers
  • wos:000240873300009
  • scopus:33748424378
ISSN
0556-2813
DOI
10.1103/PhysRevC.74.034304
language
English
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yes
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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)
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2c721c66-a4a5-44d0-ac0f-ce7e22d006aa (old id 389419)
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2016-04-01 15:53:23
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@article{2c721c66-a4a5-44d0-ac0f-ce7e22d006aa,
  abstract     = {A search for isomeric states was performed in the nucleus Nd-140(60)80 using in-beam gamma-ray spectroscopy and the Te-126(O-18,4n) reaction. Prompt and delayed gamma-ray coincidences were measured with the AFRODITE spectrometer using the pulsed beam delivered by the Separated Sector Cyclotron of iThemba LABS. One new isomer was identified, with spin-parity I-pi=20(+) and lifetime T-1/2 >= 400 ns, at an excitation energy E-x=7430 keV. The lifetime of the 10(+) isomer at E-x=3619 keV was determined to be 32.9(1.8) ns, confirming the previously reported value. The configuration of the I-pi=20(+) isomer is assigned based on configuration-dependent cranked Nilsson-Strutinsky (CNS) calculations as a state pi(d(5/2)g(7/2))(10)(+-4)circle times nu(h(11/2)(-2))(10)(+), with the spin vectors of the six holes in the Gd-146(64)82 core fully aligned.},
  author       = {Petrache, C. M. and Bark, R. A. and Murray, S. T. H. and Fantuzi, M. and Lawrie, E. A. and Lang, S. and Lawrie, J. J. and Maliage, S. M. and Mengoni, D. and Mullins, S. M. and Ntshangase, S. S. and Petrache, D. and Ramashidzha, T. M. and Ragnarsson, Ingemar},
  issn         = {0556-2813},
  language     = {eng},
  number       = {3},
  publisher    = {American Physical Society},
  series       = {Physical Review C (Nuclear Physics)},
  title        = {Six-quasiparticle isomer in Nd-140},
  url          = {http://dx.doi.org/10.1103/PhysRevC.74.034304},
  doi          = {10.1103/PhysRevC.74.034304},
  volume       = {74},
  year         = {2006},
}