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Träfflista för sökning "WFRF:(Moon J. R.) srt2:(2005-2009)"

Search: WFRF:(Moon J. R.) > (2005-2009)

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1.
  • Ketelhut, S., et al. (author)
  • gamma-Ray Spectroscopy at the Limits : First Observation of Rotational Bands in Lr-255
  • 2009
  • In: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 102:21, s. 212501-
  • Journal article (peer-reviewed)abstract
    • The rotational band structure of Lr-255 has been investigated using advanced in-beam gamma-ray spectroscopic techniques. To date, Lr-255 is the heaviest nucleus to be studied in this manner. One rotational band has been unambiguously observed and strong evidence for a second rotational structure was found. The structures are tentatively assigned to be based on the 1/2(-)[521] and 7/2(-)[514] Nilsson states, consistent with assignments from recently obtained alpha decay data. The experimental rotational band dynamic moment of inertia is used to test self-consistent mean-field calculations using the Skyrme SLy4 interaction and a density-dependent pairing force.
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2.
  • Herzberg, R-D, et al. (author)
  • Isomer spectroscopy in No-254
  • 2006
  • In: Physica Scripta. - 0031-8949 .- 1402-4896. ; T125, s. 73-77
  • Journal article (peer-reviewed)abstract
    • Isomeric states in No-254 were investigated using a calorimetric method. Two different isomers were found with half-lives of T-1/2 = 266 +/- 2 ms and T-1/2 = 184 +/- 3 mu s, respectively. The dominant decay path of the 184 mu s isomer proceeds via states feeding the longer-lived 266 ms isomer. The 266 ms isomer in turn decays via a two-quasi-particle K = 3 band to the ground-state band. The full decay path was observed with the GREAT spectrometer located at the focal plane of the gas-filled separator RITU at the Accelerator Laboratory in Jyvskyl. This work sheds light on the two-quasi-particle structure in this transfermium nucleus.
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  • Result 1-3 of 3

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