Rotational g factors of osmium isotopes at low spins
In view of recent experimental data on g factors of osmium isotopes which show interesting variations as a function of mass number as well as spin, we have calculated these following the methods of variation after exact angular momentum projection of axial Hartree-Fock-Bogoliubov wave functions and the cranked Hartree-Fock-Bogoliubov theory. The observed trend of the variation of g factor at I = 2 with the mass number A = 186--192 is reproduced with very minor adjustments of the force constants of the employed pairing-plus-quadrupole model Hamiltonian in both the approaches. However, the variation of g factor with spin, which is sensitive to the interplay between collective and single particle degrees of freedom, can be understood only in the cranking approach. Though these nuclei are prolate in shape, with the increase of A they become more and more ..gamma.. soft and we suggest that ..gamma.. deformation should be treated in a generator coordinate type of calculation.
- Research Organization:
- Institute of Physics, Bhubaneswar-751005, India
- OSTI ID:
- 7057418
- Journal Information:
- Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 38:1; ISSN PRVCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
Moments
Spin
& Models
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR MOMENTUM
COULOMB EXCITATION
CRANKING MODEL
DEFORMATION
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITATION
EXCITED STATES
FUNCTIONS
HAMILTONIANS
HARTREE-FOCK-BOGOLYUBOV THEORY
INTERACTING BOSON MODEL
ISOTOPES
LANDE FACTOR
MATHEMATICAL MODELS
MATHEMATICAL OPERATORS
NUCLEAR DEFORMATION
NUCLEAR MODELS
OSMIUM ISOTOPES
PARTICLE MODELS
PARTICLE PROPERTIES
QUANTUM OPERATORS
ROTATIONAL STATES
SHELL MODELS
SINGLE-PARTICLE MODEL
SPIN
WAVE FUNCTIONS