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  • 23.20.Ck  (3)
  • 23.20.−g  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Proton-neutron multiplets in96Y (1988)
    Springer
    The European physical journal 329 (1988), S. 301-305 
    Details
    ISSN: 1434-601X
    Keywords: 21.60.Fw ; 23.20.Ck ; 27.60.+j
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The structure of the nucleus 39 96 Y57 is discussed in the framework of the parabolic rule for the splitting of members of proton-neutron coupled configurations and of the interacting boson-fermion-fermion model (IBFFM). A good description of the available experimental data including the existence of theβ − decaying 8+ isomer with a half-life of 10 s has been obtained which demonstrates the influence of the subshell closures in the neighbourhood of 40 96 Zr56.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01290235
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Structure of theN=59 nucleus97Sr: coexistence of spherical and deformed states (1990)
    Springer
    The European physical journal 337 (1990), S. 149-159 
    Details
    ISSN: 1434-601X
    Keywords: 23.20.Lv ; 21.60.Ev ; 23.20.−g
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A band with a rotational pattern based on a state at 585.1 keV has been identified in theN=59 neutron-rich nucleus97Sr. Its properties lead to the [422] 3/2 Nilsson-orbital assignment for the band head. There is evidence for a second band with the head at 644.7 keV and the configuration [541] 3/2. Since the ground state and the lowest excited levels are spherical, shape coexistence is established for97Sr. A deformed nature of several levels at 500–600 keV results also from QRPA-model calculations. The structure of the low-lying spherical levels has been studied in the frame of the IBF model. The results of the present investigations lead to a better understanding of theN=59 isotones which constitute the link between the spherical and deformed nuclei atA∼100 as a species with shape coexistence but without any indications of particular softness.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01294286
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  • 3
    Electronic Resource
    Electronic Resource
    Structure of the Triplet of low-lying states in101Mo (1991)
    Springer
    The European physical journal 339 (1991), S. 269-278 
    Details
    ISSN: 1434-601X
    Keywords: 27.60.+j ; 23.20.−g ; 21.60.−n
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The properties of the triplet of low-lying states in101Mo have been studied through spectroscopy of theγ radiation following thermal neutron capture in100Mo and β− decay of101Nb and through a measurement of the proton angular distributions in the100Mo(d,p) reaction with 14 MeV deuteron energy. The half-lives of the 13.5 keV state and the 57.0 keV 5/2+ state have been measured as 226(7) and 133(7)ns, respectively. These values and the quadrupole/dipole mixing ratios of the 13.5 keV and 43.5 keV transitions yield spin and parity 3/2+ for the 13.5 keV level. The E2 components in the 13.5 (3/2+ →1/2+) and 43.5 keV (5/2+→3/2+) transitions are ≦ 8·10−4 and 54(9)%, respectively. The possibility of an additional state near to the 57.0 keV level is discussed. IBFM/PTQM calculations, taking into consideration the transitional character of the100Mo boson core, account for the electromagnetic-transition and transfer-reaction pattern of the triplet of states.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01284064
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  • 4
    Electronic Resource
    Electronic Resource
    Calculation of nuclear structure of205Pb relevant for the205Tl bdsolar neutrino detector (1995)
    Springer
    The European physical journal 350 (1995), S. 319-325 
    Details
    ISSN: 1434-601X
    Keywords: 21.60.Cs ; 21.60.Ev ; 23.20.Ck ; 27.80.+w ; 96.60.Kx
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Energy spectrum and electromagnetic properties of205Pb have been studied in the cluster-vibration model (CVM). The lifetime of 0.3 ms was predicted for the 2.3 keV level which is of significance for considerations of the205Tl solar neutrino detector.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01291189
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  • 5
    Electronic Resource
    Electronic Resource
    Structure of low-lying levels in91Rb and93Rb (1986)
    Springer
    The European physical journal 325 (1986), S. 139-147 
    Details
    ISSN: 1434-601X
    Keywords: 23.20.Ck ; 21.60.Fw ; 27.60.+j
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: 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−.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01289644
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    Paper (German National Licenses)
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