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  • 1980-1984  (3)
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  • 1
    Electronic Resource
    Electronic Resource
    Lifetimes of rotational levels in170W (1980)
    Springer
    The European physical journal 298 (1980), S. 213-218 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Lifetimes of the first 2+, 4+ and 6+ levels in170W have been measured by the recoil-distance method based on the Doppler effect, using the155Gd (20Ne, 5n)170W reaction. The following conclusions can be drawn from the results: if there are any deviations from the predictions of the rotational model for the lifetimes of the 4+ and 6+ states, they are smaller than 8.5 %; if this model accurately describes the nucleus170W, the intrinsic quadrupole moment of this nucleus is: Q0=5.93±0.06 barns, and its deformation is: β=0.240±0.003. The value of Q0 is compared with the predictions of various calculations for the tungsten isotopes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01418659
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Backbending in theN=96 isotones (1981)
    Springer
    The European physical journal 299 (1981), S. 149-161 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The backbending in the even-even,N=96 isotones can be quantitatively accounted for by the rotation-alignment of the spins of neutrons in i 13/2 orbits, as shown by comparing the aligned angular momentum and relative Routhian for thes-bands in these isotones and for the i 13/2 bands in the corresponding isotopes withN=91. The influence of protons on this backbending situation is shown to be indirect, acting through a change of the nuclear deformation, which yields a change of the moment of inertia of the g.s. band and of the non-rigid character of the rotation. The experimental data on theN=96 and 97 isotones are in reasonable agreement with cranking model calculations. Possible reasons for the inhibition of backbending in the h 9/2 proton bands in the odd-Z, N=96 isotones, all related to a change of deformation, are presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01440916
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Electromagnetic transitions in the ground-state rotational band of159Tb (1984)
    Springer
    The European physical journal 319 (1984), S. 33-46 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The ground-state band of159Tb has been Coulomb excited up to spin 23/2 by 151-MeV40Ar ions. The lifetimes of the 9/2 to 23/2 levels have been determined by combining results obtained with the RD and DSA methods, theE2/M1 mixing ratios for ΔI=1 transitions have been measured using angular correlation techniques and the branching ratios for the levels up to spin 17/2 have been determined. The energies of the levels and the reducedM1 andE2 transition probabilities for their decay have been compared with the predictions of the rotational model, without and with ΔK=1 admixtures. No satisfactory agreement could be achieved for all available experimental data simultaneously.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01429765
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    Paper (German National Licenses)
    Fulltext
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