Phys. Rev. C 53, 2794–2800 (1996)M1 properties of tungsten isotopes in the interacting boson model-2Received 20 December 1995; published in the issue dated June 1996 The M1 properties of even 182-186W isotopes are investigated in the interacting boson model-2 (IBM-2). The E2/M1 mixing ratios, g factors, and summed M1 strength are calculated. A least-squares fit of the excitation energies is used to fix the IBM-1 projected Hamiltonian parameters, while the F-spin-breaking terms are adjusted to reproduce the M1 properties of low-lying states. The influence of F-spin mixing on the summed M1 strength is studied using the coherent state technique in perturbation theory. When the standard boson g factors are used, the M1 properties of the low-lying states are described satisfactorily, but the summed M1 strengths are found to be larger than present experimental values. Possible g factor adjustment, which reconciles the calculated and experimental M1 strength, is discussed. © 1996 The American Physical Society. © 1996 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevC.53.2794
DOI:
10.1103/PhysRevC.53.2794
PACS:
21.60.Fw, 23.20.Gq, 23.20.Js, 27.70.+q
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