Nuclear spins and moments of Ga isotopes reveal sudden structural changes between N=40 and N=50

B. Cheal, E. Mané, J. Billowes, M. L. Bissell, K. Blaum, B. A. Brown, F. C. Charlwood, K. T. Flanagan, D. H. Forest, C. Geppert, M. Honma, A. Jokinen, M. Kowalska, A. Krieger, J. Krämer, I. D. Moore, R. Neugart, G. Neyens, W. Nörtershäuser, M. Schug & 4 others H. H. Stroke, P. Vingerhoets, D. T. Yordanov, M. Žáková

    Research output: Contribution to journalArticle

    Abstract

    Collinear laser spectroscopy was performed on Ga (Z=31) isotopes at ISOLDE, CERN. A gas-filled linear Paul trap (ISCOOL) was used to extend measurements towards very neutron-rich isotopes (N=36-50). A ground state (g.s.) spin I=1/2 is measured for Ga73, being near degenerate with a 3/2- isomer (75eV Eex 1keV). The Ga79 g.s., with I=3/2, is dominated by protons in the πf5/2 orbital and in Ga81 the 5/2- level becomes the g.s. The data are compared to shell-model calculations in the f5/2pg9/2 model space, calling for further theoretical developments and new experiments.

    Original languageEnglish (US)
    Article number252502
    JournalPhysical Review Letters
    Volume104
    Issue number25
    DOIs
    StatePublished - Jun 23 2010

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    nuclear spin
    isotopes
    moments
    ground state
    laser spectroscopy
    isomers
    traps
    neutrons
    orbitals
    protons
    gases

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    Cite this

    Cheal, B., Mané, E., Billowes, J., Bissell, M. L., Blaum, K., Brown, B. A., ... Žáková, M. (2010). Nuclear spins and moments of Ga isotopes reveal sudden structural changes between N=40 and N=50. Physical Review Letters, 104(25), [252502]. https://doi.org/10.1103/PhysRevLett.104.252502

    Nuclear spins and moments of Ga isotopes reveal sudden structural changes between N=40 and N=50. / Cheal, B.; Mané, E.; Billowes, J.; Bissell, M. L.; Blaum, K.; Brown, B. A.; Charlwood, F. C.; Flanagan, K. T.; Forest, D. H.; Geppert, C.; Honma, M.; Jokinen, A.; Kowalska, M.; Krieger, A.; Krämer, J.; Moore, I. D.; Neugart, R.; Neyens, G.; Nörtershäuser, W.; Schug, M.; Stroke, H. H.; Vingerhoets, P.; Yordanov, D. T.; Žáková, M.

    In: Physical Review Letters, Vol. 104, No. 25, 252502, 23.06.2010.

    Research output: Contribution to journalArticle

    Cheal, B, Mané, E, Billowes, J, Bissell, ML, Blaum, K, Brown, BA, Charlwood, FC, Flanagan, KT, Forest, DH, Geppert, C, Honma, M, Jokinen, A, Kowalska, M, Krieger, A, Krämer, J, Moore, ID, Neugart, R, Neyens, G, Nörtershäuser, W, Schug, M, Stroke, HH, Vingerhoets, P, Yordanov, DT & Žáková, M 2010, 'Nuclear spins and moments of Ga isotopes reveal sudden structural changes between N=40 and N=50', Physical Review Letters, vol. 104, no. 25, 252502. https://doi.org/10.1103/PhysRevLett.104.252502
    Cheal, B. ; Mané, E. ; Billowes, J. ; Bissell, M. L. ; Blaum, K. ; Brown, B. A. ; Charlwood, F. C. ; Flanagan, K. T. ; Forest, D. H. ; Geppert, C. ; Honma, M. ; Jokinen, A. ; Kowalska, M. ; Krieger, A. ; Krämer, J. ; Moore, I. D. ; Neugart, R. ; Neyens, G. ; Nörtershäuser, W. ; Schug, M. ; Stroke, H. H. ; Vingerhoets, P. ; Yordanov, D. T. ; Žáková, M. / Nuclear spins and moments of Ga isotopes reveal sudden structural changes between N=40 and N=50. In: Physical Review Letters. 2010 ; Vol. 104, No. 25.
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    abstract = "Collinear laser spectroscopy was performed on Ga (Z=31) isotopes at ISOLDE, CERN. A gas-filled linear Paul trap (ISCOOL) was used to extend measurements towards very neutron-rich isotopes (N=36-50). A ground state (g.s.) spin I=1/2 is measured for Ga73, being near degenerate with a 3/2- isomer (75eV Eex 1keV). The Ga79 g.s., with I=3/2, is dominated by protons in the πf5/2 orbital and in Ga81 the 5/2- level becomes the g.s. The data are compared to shell-model calculations in the f5/2pg9/2 model space, calling for further theoretical developments and new experiments.",
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    AU - Bissell, M. L.

    AU - Blaum, K.

    AU - Brown, B. A.

    AU - Charlwood, F. C.

    AU - Flanagan, K. T.

    AU - Forest, D. H.

    AU - Geppert, C.

    AU - Honma, M.

    AU - Jokinen, A.

    AU - Kowalska, M.

    AU - Krieger, A.

    AU - Krämer, J.

    AU - Moore, I. D.

    AU - Neugart, R.

    AU - Neyens, G.

    AU - Nörtershäuser, W.

    AU - Schug, M.

    AU - Stroke, H. H.

    AU - Vingerhoets, P.

    AU - Yordanov, D. T.

    AU - Žáková, M.

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    N2 - Collinear laser spectroscopy was performed on Ga (Z=31) isotopes at ISOLDE, CERN. A gas-filled linear Paul trap (ISCOOL) was used to extend measurements towards very neutron-rich isotopes (N=36-50). A ground state (g.s.) spin I=1/2 is measured for Ga73, being near degenerate with a 3/2- isomer (75eV Eex 1keV). The Ga79 g.s., with I=3/2, is dominated by protons in the πf5/2 orbital and in Ga81 the 5/2- level becomes the g.s. The data are compared to shell-model calculations in the f5/2pg9/2 model space, calling for further theoretical developments and new experiments.

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