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  • Articles: DFG German National Licenses  (2)
  • Electronic Resource  (2)
  • 1990-1994  (2)
  • 23.20.Ck  (2)
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  • Articles: DFG German National Licenses  (2)
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  • Electronic Resource  (2)
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Year
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  • 1
    Electronic Resource
    Electronic Resource
    Quadrupole and octupole collectivity in light Po isotopes (1991)
    Springer
    The European physical journal 339 (1991), S. 225-229 
    Details
    ISSN: 1434-601X
    Keywords: 21.10.−k ; 23.20.Ck ; 27.80.+w
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The level structure of196Po has been studied using a160Dy(40Ar, 4n) reaction and a recoil-catcher technique to reduce fission. The results showed a sharp drop off in the first (2+) and (4+) energies relative to systematics implying an abrupt increase in the quadrupole collectivity at N=112. In addition, second (2+) and(4+) states were identified at 859 and 1388 keV, respectively, suggesting the discovery of a 4p2h deformed band in Po isotopes which is related to known 2p2h proton bands in several Pb isotopes. A prompt183W(20Ne, 5n@#@) experiment located similar second 2+ and 4+ states at 1039 and 1483 keV in198Po providing corroboration and extended information on the properties of the new Po deformed bands. A measured halflife of 850 (90) ns for the 2491 keV (11−) state in196Po implied collective E3 contributions to the extractedB (@#@ E3; 11−→8+)=27(5) W.u.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01284056
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Nuclear structure study of the neutron deficient cadmium isotopes100, 101, 102Cd (1992)
    Springer
    The European physical journal 344 (1992), S. 1-11 
    Details
    ISSN: 1434-601X
    Keywords: 21.10.Hw ; 21.10.Ky ; 21.60.Cs ; 23.20.Ck ; 23.20.Lv ; 27.60.+j
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The neutron-deficient nuclei100,101Cd were identified for the first time in — beam following the reactions58Ni +46,48Ti and58Ni +50Cr at 230 MeV and 245 MeV bombarding energy of the58Ni beams. Theγ-decay of the isotopes100,101,102Cd was studied inpγ, ppγ,nγ, nnγ, andnγγ prompt and delayed coincidence spectra. Isomers were found with spin and half life {ie1-01}=8+, T1/2=52(5) ns in100Cd, {ie1-02}=(19/2+), T1/2=4.6(4) ns in101Cd and {ie1-03}=8+, T1/2=56(4) ns in102Cd. In a PAD experiment theg-factor of the {ie1-04}=8+ isomer in100Cd was measured to be g=1.24(6). Using the reaction36Ar +70Ge at 135 MeV energy of the36Ar beam, theg-factor and the quadrupole moment of the {ie1-05}=8+ isomer in102Cd were measured to be g=1.29(3) and Q=87(10) fm2, respectively. The spectroscopic results are discussed within a shell model approach using a100Sn core, which accounts well for the electromagnetic properties of the proton aligned isomers. The structure of the spherical neutron states, dominated by the close lying vd5/2, g7/2 orbitals, and the gradually developing quadrupole collectivity are reproduced by the shell model calculations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01291011
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    Paper (German National Licenses)
    Fulltext
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