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Nuclear Magnetic Moment of the 57Cu Ground State

K. Minamisono·P. F. Mantica·T. J. Mertzimekis·A. D. Davies·M. Hass·J. Pereira·J. S. Pinter·W. F. Rogers·J. B. Stoker·B. E. Tomlin·R. R. Weerasiri
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Abstract

The nuclear magnetic moment of the ground state of 57Cu has been measured to be 2.00 +/- 0.05 nuclear magnetons (nm) using the beta-NMR technique. Together with the known magnetic moment of the mirror partner 57Ni, the spin extraction value was extracted as -0.78 +/- 0.13. This is the heaviest isospin T=1/2 mirror pair above the 40Ca region, for which both ground state magnetic moments have been determined. Shell model calculations in full fp shell giving mu(57Cu)~2.4 nm and ~0.5 imply significant shell breaking at 56Ni with the neutron number N=28.

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K. Minamisono, P. F. Mantica, T. J. Mertzimekis, A. D. Davies, M. Hass, J. Pereira, J. S. Pinter, W. F. Rogers, J. B. Stoker, B. E. Tomlin, R. R. Weerasiri. 2006-02-16. Nuclear Magnetic Moment of the 57Cu Ground State. https://doi.org/10.1103/physrevlett.96.102501

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