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  • 25.85.Ec  (3)
  • PACS:27.60.+j 90 ≤ A ≤ 149 – 21.10.Tg Lifetimes – 23.20.Lv Gamma transitions and level energies  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Beta Decay of 111Tc to 111Ru (1998)
    Springer
    The European physical journal 2 (1998), S. 17-19 
    Details
    ISSN: 1434-601X
    Keywords: PACS:27.60.+j 90 ≤ A ≤ 149 – 21.10.Tg Lifetimes – 23.20.Lv Gamma transitions and level energies
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: The β-decay of the very neutron-rich 111Tc nucleus has been observed. A partial decay scheme of 111Ru is presented, complementing the high-spin levels earlier reported in spontaneous fission work.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100500050085
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  • 2
    Electronic Resource
    Electronic Resource
    Magnetic moments of the 2 1 + states in102, 104Mo (1985)
    Springer
    The European physical journal 321 (1985), S. 593-598 
    Details
    ISSN: 1434-601X
    Keywords: 25.85.Ec ; 21.10.Ky ; 27.60.+j
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Theg factors of the first excited 2+ levels in the neutron-rich nuclei102Mo and104Mo have been studied through the measurement of the perturbed angular correlations for theγ-γ cascades between the 0 2 + -2 1 + -0 1 + level sequences. The results of g=0.42±0.07 for102Mo and ofg= −0.11 +0.12 for104Mo agree with the prediction of the vibrational-rotational model. In terms of IBA, with the assumption ofN π=3 for the Mo isotopes which takes into consideration a two particle, two-hole excitation across the Z=40 subshell, the proton-bosong factor is deduced to beg π=1.00±0.23. It is shown that this value provides evidence for subshell effects in100Zr.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01432435
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  • 3
    Electronic Resource
    Electronic Resource
    Shape coexistence near the double-midshell nucleus 111Rh (1998)
    Springer
    The European physical journal 1 (1998), S. 285-297 
    Details
    ISSN: 1434-601X
    Keywords: PACS:27.60.+j 90 ≤ A ≤ 149 – 21.10.Tg Lifetimes – 23.20.Lv Gamma transitions and level energies
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: The decay of 111Ru obtained from fast on-line chemical and mass separation has been investigated by β-γ-t and γ-γ coincidence techniques. Earlier spin and parity assignments of 111Rh levels based on extrapolations of level systematics are confirmed. In particular, the K=1/2 intruder band is supported by the hindrance of E2 transitions between deformed and spherical states and enhancement of intraband E2 transitions. The excitation energies of intruder band members in Rh isotopes show a minimum at 109Rh64, with two neutrons less than 111Rh at the N=66 midshell. This trend, which differs from the one in the higher-Z neighbouring elements Ag and Cd with minima at N=66, follows the evolution of deformation observed in the lower-Z elements Ru and Mo.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100500050063
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  • 4
    Electronic Resource
    Electronic Resource
    The decay scheme of the 3-s Isomer of100Nb and the properties of levels in100Mo (1987)
    Springer
    The European physical journal 327 (1987), S. 119-126 
    Details
    ISSN: 1434-601X
    Keywords: 25.85.Ec ; 23.20.En ; 23.20.Gq ; 23.20.Lv ; 27.60.+j
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Theβ − decay of the longer-lived isomer in100Nb has been studied at the fission-product separator JOSEF. Measurements ofγ-ray singles spectra, ofγ-γ coincidences and ofγ-γ angular correlations have been performed. A value oft 1/2=2.99(11)s has been determined for the isomer which probably hasI π=4+ or 5+. A scheme of the levels of100Mo which are populated in the decay of this isomer has been established. Information on the spins of several states of100Mo has been obtained. Thus,I=0 levels have been identified at 1,505, 2,038 and 2,087 keV. The mixing ratios have been determined for the 22 +→21 + and 23 +→21 + transitions. The results provide evidence for a vibrational structure of100Mo with separate bands based on the ground state and on the first excited 0+ level.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01295258
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  • 5
    Electronic Resource
    Electronic Resource
    A new high-spin isomer in 39 97 Y58 (1986)
    Springer
    The European physical journal 323 (1986), S. 59-67 
    Details
    ISSN: 1434-601X
    Keywords: 25.85.Ec ; 23.20.Lv ; 27.60.+j
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract An isomeric state at 3,523 keV excitation energy in97Y with a half-life of 144(10) ms has been discovered with the fission-product separator JOSEF. This isomer is depopulated through aγ transition of 162 keV. AnE3 multipolarity for this transition is consistent with the measured conversion coefficients ofα K =0.98(20) andα T =1.00(19). Subsequent electromagnetic transitions populate several new97Y levels which have high spins. For the isomer the three-quasiparticle configuration [πg 9/2⊗ν(h 11/2,g 7/2)]27/2− is proposed. TheE3 transition with a strength about 2 single-particle units is supposed to be of the typeh 11 2/+1 →d 5 2/−1 . These findings provide evidence for the rapid shape transition atA≃100 since they indicate shell-model character of 39 97 Y58 even at high excitation energies while the immediate neighbour 39 98 Y59 contains a rotational band based on a level at 495 keV.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01294555
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