### Abstract

The M1 properties of even ^{182-186}W 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 language | English (US) |
---|---|

Pages (from-to) | 2794-2800 |

Number of pages | 7 |

Journal | Physical Review C - Nuclear Physics |

Volume | 53 |

Issue number | 6 |

DOIs | |

State | Published - Jun 1996 |

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### ASJC Scopus subject areas

- Physics and Astronomy(all)
- Nuclear and High Energy Physics

### Cite this

*Physical Review C - Nuclear Physics*,

*53*(6), 2794-2800. https://doi.org/10.1103/PhysRevC.53.2794

**M1 properties of tungsten isotopes in the interacting boson model-2.** / Navrátil, P.; Barrett, Bruce R; Dobeš, J.

Research output: Contribution to journal › Article

*Physical Review C - Nuclear Physics*, vol. 53, no. 6, pp. 2794-2800. https://doi.org/10.1103/PhysRevC.53.2794

}

TY - JOUR

T1 - M1 properties of tungsten isotopes in the interacting boson model-2

AU - Navrátil, P.

AU - Barrett, Bruce R

AU - Dobeš, J.

PY - 1996/6

Y1 - 1996/6

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=0030552698&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0030552698&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.53.2794

DO - 10.1103/PhysRevC.53.2794

M3 - Article

AN - SCOPUS:0030552698

VL - 53

SP - 2794

EP - 2800

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

SN - 0556-2813

IS - 6

ER -