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  • 1
    Electronic Resource
    Electronic Resource
    Low-lying intrinsic energy levels in the nucleus170Ho (1983)
    Springer
    The European physical journal 310 (1983), S. 95-97 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The band-head energies of the two-quasiparticle states expected in the doubly odd deformed nucleus170Ho are calculated for a zero range residual interaction. The results are compared with the available experimental information. It is concluded that the ground state has the Nilsson configuration 6+{7/2−[523↑] p }+5/2[512↑] n being the 2.76m isomer whereas the 43s isomer is the 1+ ∑=0 state arising from the same configuration and lies at about 100 keV excitation energy in agreement with the experiment. The first excited state in this nucleus is predicted to be the 4−{3/2+[411↑] p +5/2−[521↑] n } state close to the ground state with the corresponding 1− ∑=0 member expected to appear well above the 1+ isomer.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01433616
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  • 2
    Electronic Resource
    Electronic Resource
    Low-lying two-particle states in the nucleus236Np (1984)
    Springer
    The European physical journal 318 (1984), S. 111-114 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The ambiguities and the uncertainties about the energy levels of the doubly odd actinide nucleus 93 236 Np143 are sought to be removed by determination of the bandhead energies of various two-particle configurations expected to appear in the low energy spectrum of this nucleus. The calculations involve quantitative evaluation of the zero range neutron-proton residual interaction energy contribution to the bandhead energy for each configuration. It is concluded that the ground state is the long-lived isomer with spin-parityI π=6- arising from the configuration {5/2+[642] p +7/2−[743] n }. Bandhead energies for eight two-particle states appearing upto an excitation energy of 400 keV are presented and the results are discussed in the context of the available and further experiments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02117220
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Energy levels of the nucleus248Bk (1983)
    Springer
    The European physical journal 314 (1983), S. 219-225 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The ambiguities and contradictions in presently available experimental information on the energy levels of the doubly odd deformed nucleus248Bk are sought to be cleared through calculation of the band head energies of the two-particle states based on evaluation of the residualn-p interaction energy for a zero range interaction. The applicability of the Gallagher-Moszkowski rule for the relative ordering of the spin triplet and singlet states is critically examined. It is concluded that the 8− state from the {7/2+[633]p; 9/2−[734]n configuration is the long lived isomer and forms the ground state of this nucleus. The 1− state of the same configuration is the short lived isomer and an excited state in accordance with the GM rule and so is the 6+ state of the {3/2−[521]p; 9/2−[734]n configuration. The expected location of 20 two particle states comprising 10 GM pairs is calculated and compared with the available experimental information.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01879881
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  • 4
    Electronic Resource
    Electronic Resource
    Quadruplet spectroscopy in the region of strong nuclear octupole correlations (1990)
    Springer
    Czechoslovak journal of physics 40 (1990), S. 622-628 
    Details
    ISSN: 1572-9486
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Experimental evidence from the spectroscopy of155Gd and153Sm for the theoretically predicted quadruplet band structure, with band parity sequences (+−−+) and (−++−), is examined.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01597858
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  • 5
    Electronic Resource
    Electronic Resource
    Description of multi-band structures in154Gd and156Gd on symmetry considerations (1985)
    Springer
    The European physical journal 320 (1985), S. 645-648 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The observed similarities of the yrast band level energies of several pairs of lighter rare-earth even-even nuclei are indicative of a particle-hole type symmetry for nuclei withA =164±a. This feature is sought to be described in terms of the representations of theSU(7) group in the interacting Fermion picture.SU(3) reduction of this group leads to the prediction of characteristic multi-band structures in these nuclei. Detailed comparison of the single-parameter predictions of this scheme with the available experimental informations on the level schemes for the nuclei154Gd and156Gd reveals striking agreement between the theory and the experiments. The results are discussed in comparison with the predictions of the simple Interacting Boson Model.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01411865
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  • 6
    Electronic Resource
    Electronic Resource
    Microscopic structures of parity doublets in the151Pm,153Eu and155Eu nuclei (1992)
    Springer
    The European physical journal 344 (1992), S. 277-283 
    Details
    ISSN: 1434-601X
    Keywords: 21.60.Ev ; 27.70.+ q
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Microscopic structures of the proposed parity doublet bands in the odd-proton Z=61151Pm and Z=63153, 155Eu nuclei are examined using the quasiparticle phonon nuclear model Hamiltonian including the residual pairing and multipole-multipole interactions. Octupole correlations between intrinsic nonrotational states are studied to check the suggested assignments of parity doublet partners in these nuclei. We conclude significant octupole correlations between a pair ofK π = 1/2± doublets in each of these nuclei, with somewhat weaker correlations betweenK π = 3/2± bands in both the Eu isotopes. No octupole connection between the lowestK π = 5/2± bands is found; however, significant octupole collectivity, built on the low-lying 5/2− bands, is predicted in the higher-lying 5/2+ bands which contain the 5/2+ [402] fragmented strength.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01303021
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    Paper (German National Licenses)
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