TY - JOUR
T1 - M1 properties of tungsten isotopes in the interacting boson model-2
AU - Navrátil, P.
AU - Barrett, B. 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
SN - 0556-2813
VL - 53
SP - 2794
EP - 2800
JO - Physical Review C - Nuclear Physics
JF - Physical Review C - Nuclear Physics
IS - 6
ER -