Rotational g factors of sup 158 Er at low spins

Journal Article · Wed Jan 31 23:00:00 EST 1990 · Physical Review, C (Nuclear Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevC.41.782· OSTI ID:7243284

Ansari, A ^[1]

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1. Institute of Physics, Bhubaneswar 751005, India (IN)

Using a pairing-plus-quadrupole-model interaction Hamiltonian in a variation-after-exact-angular-momentum-projection approach we have calculated {ital g} factors of {sup 158}Er for the low-spin yrast states with {ital I}=2--8. We find that {ital g} factors decrease very slowly with the increase of spin ({ital g}{sub 8}=0.86g{sub 2}) even though shape parameters ({beta},{Delta}{sub {ital n}},{Delta}{sub {ital p}}) change appreciably as a function of angular momentum. This is in contrast to a rapid fall predicted in the cranked Hartree-Fock-Bogoliubov approach which happens because of a too early ({ital I}{lt}8) strong rotation alignment of neutron {ital i}{sub 13/2} orbitals.

• OSTI ID: 7243284
• Journal Information: Physical Review, C (Nuclear Physics); (USA), Journal Name: Physical Review, C (Nuclear Physics); (USA) Vol. 41:2; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

653001* -- Nuclear Theory-- Nuclear Structure
Moments
Spin
& Models
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR MOMENTUM
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CRANKING MODEL
DEFORMED NUCLEI
ENERGY LEVELS
ERBIUM 158
ERBIUM ISOTOPES
EVEN-EVEN NUCLEI
EXCITED STATES
FUNCTIONS
GYROMAGNETIC RATIO
HAMILTONIANS
HARTREE-FOCK-BOGOLYUBOV THEORY
HOURS LIVING RADIOISOTOPES
INTERACTIONS
INTERMEDIATE MASS NUCLEI
ISOTOPES
MATHEMATICAL MODELS
MATHEMATICAL OPERATORS
NUCLEAR MODELS
NUCLEI
PAIRING INTERACTIONS
PARTICLE PROPERTIES
QUADRUPOLE MOMENTS
QUANTUM OPERATORS
RADIOISOTOPES
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
ROTATIONAL STATES
SPIN
WAVE FUNCTIONS
YRAST STATES