M1 properties of tungsten isotopes in the interacting boson model-2

P. Navrátil, B. R. Barrett, J. Dobeš

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21 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)2794-2800
Number of pages7
JournalPhysical Review C - Nuclear Physics
Issue number6
StatePublished - Jun 1996

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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