Spin and magnetic moment of Mg33

Evidence for a negative-parity intruder ground state

D. T. Yordanov, M. Kowalska, K. Blaum, M. De Rydt, K. T. Flanagan, P. Lievens, R. Neugart, G. Neyens, H. H. Stroke

    Research output: Contribution to journalArticle

    Abstract

    We report on the first determination of the nuclear ground-state spin of Mg33, I=3/2, and its magnetic moment, μ=-0.7456(5)μN, by combining laser spectroscopy with nuclear magnetic resonance techniques. These values are inconsistent with an earlier suggested 1 particle-1 hole configuration and provide evidence for a 2 particle-2 hole intruder ground state with negative parity. The results are in agreement with an odd-neutron occupation of the 3/2[321] Nilsson orbital at a large prolate deformation. The discussion emphasizes the need of further theoretical and experimental investigation of the island of inversion, a region previously thought to be well understood.

    Original languageEnglish (US)
    Article number212501
    JournalPhysical Review Letters
    Volume99
    Issue number21
    DOIs
    StatePublished - Nov 21 2007

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    parity
    magnetic moments
    moments
    ground state
    laser spectroscopy
    occupation
    inversions
    neutrons
    orbitals
    nuclear magnetic resonance
    configurations

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    Cite this

    Yordanov, D. T., Kowalska, M., Blaum, K., De Rydt, M., Flanagan, K. T., Lievens, P., ... Stroke, H. H. (2007). Spin and magnetic moment of Mg33: Evidence for a negative-parity intruder ground state. Physical Review Letters, 99(21), [212501]. https://doi.org/10.1103/PhysRevLett.99.212501

    Spin and magnetic moment of Mg33 : Evidence for a negative-parity intruder ground state. / Yordanov, D. T.; Kowalska, M.; Blaum, K.; De Rydt, M.; Flanagan, K. T.; Lievens, P.; Neugart, R.; Neyens, G.; Stroke, H. H.

    In: Physical Review Letters, Vol. 99, No. 21, 212501, 21.11.2007.

    Research output: Contribution to journalArticle

    Yordanov, DT, Kowalska, M, Blaum, K, De Rydt, M, Flanagan, KT, Lievens, P, Neugart, R, Neyens, G & Stroke, HH 2007, 'Spin and magnetic moment of Mg33: Evidence for a negative-parity intruder ground state', Physical Review Letters, vol. 99, no. 21, 212501. https://doi.org/10.1103/PhysRevLett.99.212501
    Yordanov DT, Kowalska M, Blaum K, De Rydt M, Flanagan KT, Lievens P et al. Spin and magnetic moment of Mg33: Evidence for a negative-parity intruder ground state. Physical Review Letters. 2007 Nov 21;99(21). 212501. https://doi.org/10.1103/PhysRevLett.99.212501
    Yordanov, D. T. ; Kowalska, M. ; Blaum, K. ; De Rydt, M. ; Flanagan, K. T. ; Lievens, P. ; Neugart, R. ; Neyens, G. ; Stroke, H. H. / Spin and magnetic moment of Mg33 : Evidence for a negative-parity intruder ground state. In: Physical Review Letters. 2007 ; Vol. 99, No. 21.
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