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  • 27.60.+j  (3)
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  • 1
    Digitale Medien
    Digitale Medien
    Decay of the new isotope127Pr (1994)
    Springer
    The European physical journal 349 (1994), S. 143-146 
    Details
    ISSN: 1434-601X
    Schlagwort(e): 23.40.−s ; 23.20.LV ; 27.60.+j
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract A new isotope,127Pr, has been identified and its decay has been studied using on-line isotope separation of94Mo (36Ar,p2n) reaction products. The half-life of the isotope was determined to be 7.7(6) s, and a γ/X-ray spectrum has been obtained. A partial level scheme is proposed for127Ce on the basis ofγ-singles,β-gatedγ andγγ-coincidence data.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01291172
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  • 2
    Digitale Medien
    Digitale Medien
    The deformedN=60 nucleus 41 101 Nb (1991)
    Springer
    The European physical journal 340 (1991), S. 5-16 
    Details
    ISSN: 1434-601X
    Schlagwort(e): 23.20.Ck ; 2320.Lv ; 27.60.+j
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract The β− decay of101Zr has been investigated at the fission-product separators JOSEF and LOHENGRIN. The half-life of101Zr has been determined to 2.5(1) s and a level scheme for101Nb has been established fromγ ray singles as well as X/3-γ and γ—γ coincidence measurements. Conversion coefficients for transitions in101Nb and level half-lives between 10 ps and 2 ns have been determined. Three rotational bands are identified among the low-lying levels with band heads at 0 keV, 206 keV and 208 keV. The bands are probably based on the Nilsson configurations [422 5/2+], [301 3/2−] and [303 5/2−], respectively. The deformation has been determined to βq=0.40(4) and 0.41(8) for the ground state band and the band based on the 206 keV level from the half-lives of the first and second excited members of these bands. This shows that the rapid onset of deformation at N=60 which is typical for the A=100 region of neutron-rich nuclei, takes also place in the Nb isotopes. Nilsson model calculations describe the experimental data well, especially the several determined transition probabilities including those for E1 transitions from the 206 and 208 keV band heads to the ground state.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01284474
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  • 3
    Digitale Medien
    Digitale Medien
    Structure of low-lying levels in91Rb and93Rb (1986)
    Springer
    The European physical journal 325 (1986), S. 139-147 
    Details
    ISSN: 1434-601X
    Schlagwort(e): 23.20.Ck ; 21.60.Fw ; 27.60.+j
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract Life-times of low-lying levels in 37 91 Rb54 and 37 93 Rb56 have been determined fromβ −−γ coincidence measurements at the fission-product separator JOSEF. Values oft 1/2=17.0(8) ns and 2.0(2) ns have been obtained for the levels at 1,134 keV in91Rb and 267 keV in93Rb, respectively, and upper limits could be deduced for several other states. Calculations in the frame of IBFM/PTQM have been performed for91Rb, the results of which allow an interpretation of the low-lying levels of this nucleus. For the 1,134 keV level the configuration [πg 9/2⊗2+] 7/2+ is suggested which lies close to or even below the 9/2 1 + level. The calculated half-life of 14 ns for the 1,134 keV level reproduces well the experimental value. The half-life of the 267 keV level in93Rb favours the assignment ofI π=1/2− to this state over the alternative 3/2−.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01289644
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