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  • Electronic Resource  (9)
  • 21.60.Ev  (7)
  • 21.10.Pc  (2)
  • 1
    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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  • 2
    Electronic Resource
    Electronic Resource
    Level density fluctuations in the generalized interacting boson model (1992)
    Springer
    The European physical journal 344 (1992), S. 155-158 
    Details
    ISSN: 1434-601X
    Keywords: 24.60.Ky ; 21.60.Ev ; 21.60.Fw
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Level density fluctuations are calculated within the generalized interacting boson model proposed for even-even nuclei, in dependence on the truncation parameterk. For the case ϰ=2 corresponding to theSU(3) dynamical symmetry of the interacting boson model the fluctuation pattern is close to Poissonian. For cases ϰ≠2, including the anharmonic vibrator model for which ϰ=∞, a rapid transition to the fluctuation pattern close to GOE is obtained.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01291699
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  • 3
    Electronic Resource
    Electronic Resource
    Pseudobands in non-SU(3) odd-mass nuclei and coherent state structures of quadrupole phonons (1987)
    Springer
    The European physical journal 327 (1987), S. 393-396 
    Details
    ISSN: 1434-601X
    Keywords: 21.10.Re ; 21.60.Ev
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Ground state symmetric rotor bands are described as coherent-state structures of deformation in a quadrupole-phonon model. These structures are shown to be very different from the phonon composition of pseudobands which are culled from the excited state spectrum of nuclei such as75Se,75Kr, and77Kr. The pseudobands are shown to be only a subset of more complete excitation spectra, which occur in most unique-parity odd-nucleon nuclei with a transitional core and can be expected to occur throughout the chart of the nuclides.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01289563
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  • 4
    Electronic Resource
    Electronic Resource
    Nature of93Rb levels studied in IBFM (1989)
    Springer
    The European physical journal 333 (1989), S. 1-4 
    Details
    ISSN: 1434-601X
    Keywords: 21.10.Pc ; 21.60.Fw ; 27.60.+j
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The structure of the low-lying states with negative parity of 37 93 Rb56 has been studied in the framework of the Interacting Boson-Fermion Model (IBFM) using the even-even neighbour 38 94 Sr56 as a core. A good description of the properties of the levels has been obtained. A sensitive test of the quality of the theoretical studies is the decay pattern of the second excited state at 267 keV with a half-life of 2.0(2) ns. The calculations givet 1/2=2.26 ns and they predict the existence of a 13 keV transition into the first excited state, the existence of which has been confirmed afterwards by experiments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01290103
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  • 5
    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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  • 6
    Electronic Resource
    Electronic Resource
    Structure of the neutron-rich nucleus 37 94 rb57 (1989)
    Springer
    The European physical journal 334 (1989), S. 259-267 
    Details
    ISSN: 1434-601X
    Keywords: 21.10.Pc ; 21.60.Fw ; 27.60.+j
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A level scheme has been established for 37 94 Rb57 based on studies at the fission-product separator JOSEF ofγγ coincidences following theβ- decay of94Kr. For the 190.7 keV level a half-life of 2.5(8) ns has been determined through the centroid-shift method. The majorβ-decay branch of94Kr proceeds with log ft=3.7 into the 988.4 keV state in94Rb. This transition must be of the 0+→1+ GT type involving the transitionνg7/2→πg9/2. IBFFM calculations have been performed for94Rb, starting from the parametrization used in the previous IBM investigations for the isotope93Rb and the isotone96Y. A theoretical interpretation of the low-lying levels including propositions for the spins is given in a comparison to the available data.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01284553
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  • 7
    Electronic Resource
    Electronic Resource
    SpinBF πυ(5) boson-fermion dynamical symmetry and supersymmetry for odd-odd nuclei associated withU b(5) boson limit and exemplification for62Cu (1987)
    Springer
    The European physical journal 327 (1987), S. 287-289 
    Details
    ISSN: 1434-601X
    Keywords: 21.60.Ev ; 21.60 Fw
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Boson-fermion dynamical symmetry associated withU (5) boson core is introduced for odd-odd nuclei. An algorithm is constructed for the subsequent reduction appropriate for the boson-fermion group chain associated with an odd proton and neutron inj=3/2 configurations and the corresponding energy formula is given and exemplified for62Cu in the case of an associated supersymmetry.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01284451
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  • 8
    Electronic Resource
    Electronic Resource
    IBFFM yrast states in odd-odd nuclei associated withO(6) andSU(3) limits (1988)
    Springer
    The European physical journal 329 (1988), S. 151-159 
    Details
    ISSN: 1434-601X
    Keywords: 21.60.Ev ; 21.60.Fw
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract In the Interacting Boson-Fermion-Fermion Model (IBFFM) for odd-odd nuclei the yrast states are calculated for $$\tilde j_\pi = \tilde h_{1 1/2} ,\tilde j_v = \tilde i_{1 3/2} $$ , proton-neutron configurations coupled to theO(6) andSU(3) boson core. The results are discussed in terms of the strongly coupled/ decoupled band type criterion and in comparison to the peaceful and conflicting case of asymmetric rotor model.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01283770
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  • 9
    Electronic Resource
    Electronic Resource
    Analogs of Gallagher-Moszkowski bands in IBFFM — A relation to spectrum-generating supersymmetry? (1987)
    Springer
    The European physical journal 327 (1987), S. 291-294 
    Details
    ISSN: 1434-601X
    Keywords: 21.60.Ev ; 21.60.Fw
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The quantal analogs of the Gallagher-Moszkowski bands in the Interacting boson-fermion-fermion model (IBFFM) withSU (3) boson core are associated with the exact quantum numberKj p+jn and approximate quantum numberK-¦j p-jn¦ of IBFFM. For characteristic ratiosГ/δ it is shown that theK c=0 band in even-even IBM system, theK=j p andK=j n bands in the corresponding odd-even (IBFM) systems and theK=j p+j band in the corresponding odd-odd IBFFM system exhibit the supermultiplet pattern.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01284452
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